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Cybersecurity researchers have disclosed details of an attack that exploited two now-patched vulnerabilities in AhsayCBS to deliver a Python-based implant. The activity, observed by Huntress in early October 2026, involves the exploitation of a chain comprising CVE-2026-105133 and CVE-2026-105134 to bypass authentication and execute arbitrary commands on affected systems. Patches for the two vulnerabilities were released by Ahsay Backup in mid-October 2026. The two vulnerabilities are assessed to have been weaponized as zero-days, with the managed security platform first observing threat actors employing a smash-and-grab approach to deploy web shells and XMRig cryptocurrency miners on compromised systems. "However, this incident reflects a much larger intrusion with more patience; the operator planted shells in several places, ran two different miners, staged tunneling tools, and installed a custom implant, all on servers whose job is to hold backups," Huntress rese...

An iMessage flaw could let a remote attacker join a group chat and receive its messages, Apple said yesterday, and it released updates to fix it. The updates also fix a separate iMessage flaw that could let someone added to a group access messages sent before they joined. As of today, other updates released yesterday for the iPhone XS, XS Max and XR, the iPad (7th generation) and some Apple Watch models do not list either fix. The company's notes also do not say whether either flaw has been exploited, what an attacker would need, whether group members would see someone who joined this way, or whether every member must update to be protected. The updates that fix the iMessage flaws also fix a flaw in Google's Brotli compression library. The notes do not mention any attacks using that flaw. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added it to its Known Exploited Vulnerabilities catalog on October 27. The flaw that could let a remote attacker join ...

Four flaws that attackers could exploit without logging in were fixed today as part of SAP's monthly Security Patch Day—the vendor rates all four 10.0, the maximum CVSS score. Three are in the SAP NetWeaver application server, the software SAP systems run on, and one is in the Web Dispatcher, which receives web requests from the internet and passes them on to that server. The flaws in the Web Dispatcher and the Internet Communication Manager (ICM), which handles the server's web traffic, could allow an attacker who can reach the software over the network to run code, the vendor says. The flaw in the server's SAML 2.0 service provider, which hands off user sign-in to an identity provider, could allow an attacker to log in as any user on some systems that use SAML single sign-on. The flaw in SAP Gateway, which connects the server to other SAP systems and programs, could allow an attacker to impersonate one of the system's own servers and take unauthorized actions...

The login systems behind two car brands' mobile apps could be taken over completely, two security researchers found, allowing them to access any customer's account and, for an owner with a connected car, unlock the doors and start the engine. Both apps signed customers in through ForgeRock , an identity platform now part of Ping Identity , and on those servers the researchers reached an administrator console that still used its default password. They tested the full attack only on their own and consenting owners' cars in the United States, in February 2026, and both systems were fixed about two hours after they reported the problem. Shubham Shah and Sam Curry published their work late last week. They had started with the apps: both brands signed customers in through the same platform, which runs in two parts: one for login and one, called OpenIDM , that holds customer records. OpenIDM comes with a built-in administrator console powered by the Apache Felix tool. For...

Some people who set up a Keplr crypto wallet with their Google or Apple account have had money stolen by an attacker. Keplr uses a company called Web3Auth to run that Google and Apple sign-in. The attacker used a security flaw at that company to reach the wallets, both companies said late last week. Web3Auth then used the attacker's own route to empty other at-risk wallets before the attacker got to them, it said. It moved that money, with help from the wallet maker, into recovery wallets for safekeeping. So an empty balance may mean the money was rescued, not stolen. Wallets made with a recovery phrase (a backup list of 12 or 24 words) or a hardware wallet are not affected, the wallet maker said. It has paused Google and Apple sign-in while it investigates. What Affected Users Should Do The wallet maker has given this  user guidance  for accounts created with Google or Apple login: Do not send new funds to the account. Do not re-import the account or recr...

Everyone running LNbits , a free, open-source Bitcoin Lightning wallet system, should shut down their servers now because of a wave of attacks, the project said yesterday. It has several security fixes to release and asked operators to be careful until they are out. One operator said new accounts used an exploit to withdraw 2,285,545 satoshis, about 0.023 bitcoin, from his server before he could stop it. The shutdown notice came about 80 minutes after a first, narrower warning. That warning asked operators to disable Paywall, an add-on that makes people pay to view content, while the project looked into a possible bug. As of 09:00 UTC today, the project had not released a fixed version. On X, it had not canceled the notice, offered another option, or told operators how to check whether their servers were hit before they were shut down. Ben Arc, an LNbits developer, said in a  patch estimate  yesterday that patches "should be merged and available within 24-48hrs." Cou...

A single attacker using AI agents pulled emergency dispatch records covering seven Taipei districts, researchers at Acronis's Threat Research Unit said last week. The agents also found a Taipei fire department platform exposing patient data from 2018, including ECG readings and ambulance video footage, without a login. The researchers are highly confident that the attacker is a single person based in Hualien City, Taiwan. He aimed the agents at hundreds of organizations in at least 11 countries, including emergency services, banks, universities and military systems. The agents collected data or accessed systems at about 10 of them in Taiwan, Mexico and Thailand. The evidence comes from the attacker's own server, which initially appeared to be a misconfigured development system. It turned out to be his operational attack platform, containing more than 90,000 files, including the agents' conversations, his command history, hacking tools, credentials, and victims' d...

Some WordPress sites can still be attacked while they install the fix for an actively exploited flaw, according to Umut Bayram, the Picus Security researcher who found it. The update that installs the fix still unpacks its files using the site's old, unpatched code, so an attacker who strikes at the right moment can run code on the server. The researcher advises blocking web access to the site's wp-content/upgrade folder before updating. The flaw, tracked as CVE-2026-119977 , affects WordPress 4.7 through 7.1.3. During a core update that uses a complete package, WordPress unpacks a copy of the new version into a temporary folder inside wp-content/upgrade. That copy includes the WordPress installer, and the web server can usually reach it. An attacker with no account who can determine the folder's name and access the installer before WordPress deletes the copy can end up running code on the server. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) ad...

A backdoor has been found hiding in the web server that runs Control Web Panel (CWP), a free panel for managing Linux hosting servers, researchers at QiAnXin's XLab said this week. The backdoored web server executes commands that attackers send via web requests, and those requests never appear in its access logs. Installing it takes root access, so the attackers must already control the server. The researchers, who named the backdoor cwpdoor , captured its installer, a shell script posing as a version update, on June 29. The installer handles only two versions of that web server, cwpsrv 1.15.10 and 1.24.0. The researchers do not yet know how attackers get the root access the installer needs. On September 30, an archive holding a copy of the backdoor was uploaded to VirusTotal from Brazil. The researchers say this indicates that "real victims already exist in the wild." They give no count of infected servers. The backdoor is cwpsrv itself, rebuilt with extra code...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Wednesday added a medium-severity security flaw impacting multiple Apple operating systems to its Known Exploited Vulnerabilities ( KEV ) catalog, following reports of active exploitation. The vulnerability in question is CVE-2024-27834 (CVSS score: 5.5), a case of improper authentication that could allow an attacker with arbitrary read and write capability to bypass Pointer Authentication. It was addressed by Apple in May 2024 with improved checks in iOS 16.7.8 and iPadOS 16.7.8, iOS 17.5 and iPadOS 17.5, macOS Sonoma 14.5, tvOS 17.5, watchOS 10.5, and Safari 17.5. The vulnerability was demonstrated as a zero-day at the Pwn2Own Vancouver hacking contest held in March that year. The addition of CVE-2024-27834 to the KEV catalog follows a report from Sekoia that threat actors possibly linked to Russia exploited previously patched vulnerabilities in Safari and Google Chrome to deliver malware capable of harves...

The Russia-linked threat actor known as APT29 is presumed to be behind a large-scale watering hole campaign targeting iOS and Android users through compromised websites, fake domains, and a supply chain attack involving a Ukrainian web analytics service called Plerdy SEO Tracker. "The injected JavaScript code collects browser and device attributes," Sekoia researchers Amaury-Jacques Garçon and Félix Aime said in a technical report shared with The Hacker News. "Then, the delivery infrastructure delivers a platform-specific N-day exploit chain targeting either iOS or Android." The end goal of the attacks is to serve payloads capable of stealing browser cookies, and in some cases, Wi-Fi passwords or full mobile device data. The activity, codenamed Poisoned Source , was discovered by the French cybersecurity company in mid-October 2026. A defining aspect of the campaign is the use of three infection vectors - Compromise of legitimate websites to inject mal...

A critical flaw in Ruby on Rails could allow an unauthenticated attacker to write arbitrary files on an app's server by uploading a crafted file if the app processes uploads using ImageMagick . The Rails project disclosed the flaw in  an advisory  and fixed it in versions 8.1.4.1 and 8.0.5.2. The flaw is in Active Storage, the part of Rails that handles file uploads. Some apps store uploaded files using Active Storage's Disk service, which stores them on the server's disk. In those apps, an attacker could also read any file the app can read. Those files typically include the app's secret_key_base and its credentials for other systems, according to Rails. Reading them may in turn allow remote code execution or lateral movement into those systems. Rails rates the flaw 9.8 out of 10 on the CVSS scale. It is tracked as GHSA-f3w6-w445-fwh9 and does not yet have a CVE identifier. ImageMagick selects a format handler, which it calls a coder, based on the file's c...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a security flaw in WordPress Core to the Known Exploited Vulnerabilities ( KEV ) catalog, citing evidence of active exploitation. The high-severity vulnerability, tracked as CVE-2026-119977 (CVSS score: 8.1), is a case of Time-of-check Time-of-use (TOCTOU) race condition that could be exploited to achieve arbitrary code execution on affected servers. Patches for the flaw were released late last month. "WordPress Core contains a time-of-check time-of-use (TOCTOU) race condition vulnerability that could allow unauthenticated attackers to execute code on the server during the upgrade window," CISA said. "This is due to predictable, web-accessible staging paths used during full-package core upgrades." Details of the flaw emerged last week when Wordfence said exploiting the vulnerability does not require an account on the site. That said, it does require an attacker to exploit a brief w...

Barracuda has disclosed details of two vulnerabilities affecting its products that, if chained together, could allow an attacker to bypass authorization controls and gain root access to a susceptible device. The vulnerabilities, a pre-authentication authorization bypass vulnerability and a command injection vulnerability, have been assigned the CVE identifiers CVE-2026-116606 (CVSS score: 9.3) and CVE-2026-111560 (CVSS score: 8.6), respectively. While CVE-2026-116606 only affects Email Security Gateway, CVE-2026-111560 impacts the following Barracuda products - Email Security Gateway Load Balancer Application Delivery Controller Message Archiver WAF Control Center Web Application Firewall Web Security Gateway "Successful exploitation requires an attacker to have access to the administrative interface of an affected product," Barracuda said . "If exploited in combination, these vulnerabilities could allow an attacker to bypass authorization co...

An attacker broke into the update system of the cPGuard security tool on November 2 and used it to send a malicious script to customers' Linux servers. The script installed a backdoor and collected password hashes and other sensitive files from servers that ran it, cPGuard maker OPSSHIELD said in an advisory . In a later disclosure , OPSSHIELD said about 2,950 customer servers ran the script, which sent the files it collected back to the attacker. OPSSHIELD first named cPGuard 5.88.25 as the fix. Its later disclosure says version 5.88.26 removes the backdoor, and a follow-up update removes a scheduled task the script also left. Admins should install the latest version and then check that those files are gone. Credentials the script copied may still work after the update, so any server that may have run the script also needs new passwords and keys. At 02:06 UTC, the attacker, who has not been identified, used compromised credentials to get into cPGuard's update system. ...

Threat actors are attempting to exploit an unpatched maximum-severity security vulnerability in the CryptoPayment Gateway WordPress plugin, according to findings from Defused Cyber. The vulnerability in question is CVE-2026-81648, which carries a CVSS score of 10.0. Successful exploitation of the flaw could permit unauthenticated users to delete arbitrary files on the server and extract sensitive data, including stored wallet credentials. "The CryptoPayment Gateway WordPress plugin from 1.2.1 to 1.2.2 does not apply an authorization check on one of its AJAX endpoints, allowing unauthenticated users to invoke administrative operations, including deleting arbitrary files on the server, overwriting the payment gateway configuration and recovering stored wallet credentials in cleartext," according to a description of the flaw on the NIST National Vulnerability Database (NVD). The vulnerability affects versions 1.2.1 through 1.2.2, which is the latest version. There are n...

Malicious code on the website of prediction market Polymarket sold some signed-in traders' positions and moved their funds to the hackers on October 29. The code had replaced a page-speed script that the site loaded from an outside company. Polymarket says  it is refunding about $2.7 million to 726 affected wallets.  Blockchain records  show crypto worth about $2.64 million reached the hackers' wallet in under an hour. The replaced script came from DebugBear, whose real user monitoring (RUM) tool measures how fast web pages load for real visitors. Researchers at Hudson Rock  downloaded the malicious file on October 29 from the address Polymarket's site used to load the DebugBear script. They also found a change in Polymarket's site code that removed the DebugBear script. DebugBear's DNS records were compromised through its domain registrar, the company said on X. Its early findings indicate the attack targeted one customer's website. It has seen no sign...

A malicious ChatGPT share link could run an attacker's code in the logged-in session of anyone who opened it, allowing them to read their private conversations, researchers at the security firm Parameter showed. The researchers reported the flaw through  OpenAI's bug bounty program  on October 18, and OpenAI fixed it eight days later and rated it P1, its most serious category. The trap was an ordinary ChatGPT conversation shared via its public link. It could be sent the same way as any real shared chat: by email, as a chat message, as a support ticket, or as a social post. The victim did not have to install anything, join a workspace, or sign in through the attacker. In the most reliable version of the attack, they opened the link and clicked ChatGPT's Preview button once. In a later version, Parameter set the page to open Preview on its own, so opening the link was the only step. What the Attacker Could Do Once the link opened, the attacker's code ran ins...

Threat actors have been observed attempting to exploit a high-severity security flaw in WordPress Core shortly after patches were released. The vulnerability , which does not have a CVE identifier, relates to a case of remote code execution impacting WordPress Core versions 4.7 through 7.1.3. It carries a CVSS score of 8.1 on the CVSS scoring system. Patches for the flaw were released on October 28, 2026. "This is due to predictable, web-accessible staging paths used during full-package core upgrades," Wordfence said . "This makes it possible for unauthenticated attackers to execute code on the server during the upgrade window." The WordPress security company noted that successful exploitation requires an "attacker to hit a very narrow window while WordPress is unpacking a complete Core update." The issue boils down to the fact that affected versions unpack new files part of a full-package Core update into a predictable directory under "wp-c...

Drupal has warned that threat actors are exploiting a "highly critical" security flaw in its Commerce Core component. The vulnerability, tracked as CVE-2026-118539 (CVSS score: N/A), is a case of missing authorization affecting Commerce Core versions from 0.0.0 to 2.41 and from 3.0.0 to 3.3.13. "This module enables you to sell goods and services to customers through an included shopping cart and checkout form or through decoupled applications via APIs," Drupal said in an advisory. "The module doesn't sufficiently protect certain routes and entity fields, leading to an access bypass that may financially impact the vendor." The open-source content-management framework acknowledged that the vulnerability is being "actively exploited in the wild," but provided no specifics about the nature of the activity or the extent of the campaign. Users are being recommended to update to the latest version - Version 3.x - Upgrade to Commerc...