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A recently disclosed security flaw impacting Apache Tomcat has come under active exploitation in the wild following the release  of a public proof-of-concept (PoC) a mere 30 hours after public disclosure. The vulnerability, tracked as CVE-2025-24813 , affects the below versions - Apache Tomcat 11.0.0-M1 to 11.0.2 Apache Tomcat 10.1.0-M1 to 10.1.34 Apache Tomcat 9.0.0-M1 to 9.0.98 It concerns a case of remote code execution or information disclosure when specific conditions are met - Writes enabled for the default servlet (disabled by default) Support for partial PUT (enabled by default) A target URL for security sensitive uploads that is a sub-directory of a target URL for public uploads Attacker knowledge of the names of security sensitive files being uploaded The security sensitive files are also being uploaded via partial PUT Successful exploitation could permit a malicious user to view security sensitive files or inject arbitrary content into those files by mea...

Malicious actors are exploiting Cascading Style Sheets (CSS), which are used to style and format the layout of web pages, to bypass spam filters and track users' actions. That's according to new findings from Cisco Talos, which said such malicious activities can compromise a victim's security and privacy. "The features available in CSS allow attackers and spammers to track users' actions and preferences, even though several features related to dynamic content (e.g., JavaScript) are restricted in email clients compared to web browsers," Talos researcher Omid Mirzaei said in a report published last week. The insights build upon previous findings from the cybersecurity company about a spike in email threats leveraging hidden text salting in the second half of 2024 with an aim to get around email spam filters and security gateways. This technique particularly entails using legitimate features of the Hypertext Markup Language (HTML) and CSS to include commen...

Cybersecurity researchers have demonstrated a novel technique that allows a malicious web browser extension to impersonate any installed add-on. "The polymorphic extensions create a pixel perfect replica of the target's icon, HTML popup, workflows and even temporarily disables the legitimate extension, making it extremely convincing for victims to believe that they are providing credentials to the real extension," SquareX said in a report published last week. The harvested credentials could then be abused by the threat actors to hijack online accounts and gain unauthorized access to sensitive personal and financial information. The attack affects all Chromium-based web browsers, including Google Chrome, Microsoft Edge, Brave, Opera, and others. The approach banks on the fact that users commonly pin extensions to the browser's toolbar. In a hypothetical attack scenario, threat actors could publish a polymorphic extension to the Chrome Web Store (or any extension m...

A cross-site scripting (XSS) vulnerability in a virtual tour framework has been weaponized by malicious actors to inject malicious scripts across hundreds of websites with the goal of manipulating search results and fueling a spam ads campaign at scale. Security researcher Oleg Zaytsev, in a report shared with The Hacker News, said the campaign – dubbed 360XSS – affected over 350 websites, including government portals, U.S. state government sites, American universities, major hotel chains, news outlets, car dealerships, and several Fortune 500 companies. "This wasn't just a spam operation," the researcher said . "It was an industrial-scale abuse of trusted domains." All these websites have one thing in common: A popular framework called Krpano that's used to embed 360° images and videos to facilitate interactive virtual tours and VR experiences.  Zaytsev said he stumbled upon the campaign after coming across a pornography-related ad listed on Google ...

A high-severity security flaw impacting the Craft content management system (CMS) has been added by the U.S. Cybersecurity and Infrastructure Security Agency (CISA) to its Known Exploited Vulnerabilities ( KEV ) catalog, based on evidence of active exploitation. The vulnerability in question is CVE-2025-23209 (CVSS score: 8.1), which impacts Craft CMS versions 4 and 5. It was addressed by the project maintainers in late December 2024 in versions 4.13.8 and 5.5.8. "Craft CMS contains a code injection vulnerability that allows for remote code execution as vulnerable versions have compromised user security keys," the agency said. The vulnerability affects the following version of the software - >= 5.0.0-RC1, < 5.5.5 >= 4.0.0-RC1, < 4.13.8 In an advisory released on GitHub, Craft CMS noted that all unpatched versions of Craft with a compromised security key are impacted by the security defect. "If you can't update to a patched version, then rota...

Cybersecurity researchers are alerting to a new campaign that leverages web injects to deliver a new Apple macOS malware known as FrigidStealer . The activity has been attributed to a previously undocumented threat actor known as TA2727, with the information stealers for other platforms such as Windows ( Lumma Stealer or DeerStealer ) and Android ( Marcher ). TA2727 is a "threat actor that uses fake update themed lures to distribute a variety of malware payloads," the Proofpoint Threat Research Team said in a report shared with The Hacker News.  It's one of the newly identified threat activity clusters alongside TA2726, which is assessed to be a malicious traffic distribution system (TDS) operator that facilitates traffic distribution for other threat actors to deliver malware. The financially motivated threat actor is believed to be active since at least September 2022. TA2726, per the enterprise security firm, acts as a TDS for TA2727 and another threat actor ca...

A widespread phishing campaign has been observed leveraging bogus PDF documents hosted on the Webflow content delivery network (CDN) with an aim to steal credit card information and commit financial fraud. "The attacker targets victims searching for documents on search engines, resulting in access to malicious PDF that contains a CAPTCHA image embedded with a phishing link, leading them to provide sensitive information," Netskope Threat Labs researcher Jan Michael Alcantara said . The activity, ongoing since the second half of 2024, entails users looking for book titles, documents, and charts on search engines like Google to redirect users to PDF files hosted on Webflow CDN. These PDF files come embedded with an image that mimics a CAPTCHA challenge, causing users who click on it to be taken to a phishing page that, this time, hosts a real Cloudflare Turnstile CAPTCHA. In doing so, the attackers aim to lend the process a veneer of legitimacy, fooling victims into think...

Threat actors have been observed leveraging Google Tag Manager (GTM) to deliver credit card skimmer malware targeting Magento-based e-commerce websites. Website security company Sucuri said the code, while appearing to be a typical GTM and Google Analytics script used for website analytics and advertising purposes, contains an obfuscated backdoor capable of providing attackers with persistent access. As of writing, as many as three sites have been found to be infected with the GTM identifier (GTM-MLHK2N68) in question, down from six reported by Sucuri. GTM identifier refers to a container that includes the various tracking codes (e.g., Google Analytics, Facebook Pixel) and rules to be triggered when certain conditions are met. Further analysis has revealed that the malware is being loaded from the Magento database table "cms_block.content," with the GTM tag containing an encoded JavaScript payload that acts as a credit card skimmer. "This script was designed to ...

Threat actors have been observed targeting Internet Information Services (IIS) servers in Asia as part of a search engine optimization (SEO) manipulation campaign designed to install BadIIS malware. "It is likely that the campaign is financially motivated since redirecting users to illegal gambling websites shows that attackers deploy BadIIS for profit," Trend Micro researchers Ted Lee and Lenart Bermejo said in an analysis published last week, Targets of the campaign include IIS servers located in India, Thailand, Vietnam, Philippines, Singapore, Taiwan, South Korea, Japan, and Brazil. These servers are associated with government, universities, technology companies, and telecommunications sectors. Requests to the compromised servers can then be served altered content from attackers, ranging from redirections to gambling sites to connecting to rogue servers that host malware or credential harvesting pages. It's suspected that the activity is the work of a Chinese-s...

Microsoft is warning of an insecure practice wherein software developers are incorporating publicly disclosed ASP.NET machine keys from publicly accessible resources, thereby putting their applications in attackers' pathway. The tech giant's threat intelligence team said it observed limited activity in December 2024 that involved an unknown threat actor using a publicly available, static ASP.NET machine key to inject malicious code and deliver the Godzilla post-exploitation framework. It also noted that it has identified over 3,000 publicly disclosed keys that could be used for these types of attacks, which it's calling ViewState code injection attacks . "Whereas many previously known ViewState code injection attacks used compromised or stolen keys that are often sold on dark web forums, these publicly disclosed keys could pose a higher risk because they are available in multiple code repositories and could have been pushed into development code without modificat...

Three security flaws have been disclosed in the open-source PHP package Voyager that could be exploited by an attacker to achieve one-click remote code execution on affected instances. "When an authenticated Voyager user clicks on a malicious link, attackers can execute arbitrary code on the server," Sonar researcher Yaniv Nizry said in a write-up published earlier this week. The identified issues, which remain unpatched to date despite responsible disclosure on September 11, 2024, are listed below - CVE-2024-55417 - An arbitrary file write vulnerability in the "/admin/media/upload" endpoint CVE-2024-55416 - A reflected cross-site scripting (XSS) vulnerability in the "/admin/compass" endpoint CVE-2024-55415 - An arbitrary file leak and deletion vulnerability  A malicious attacker could leverage Voyager's media upload feature to upload a malicious file in a manner that bypasses MIME type verification, and make use of a polyglot file that ap...

Cybersecurity researchers have exposed a new campaign that targets web servers running PHP-based applications to promote gambling platforms in Indonesia. "Over the past two months, a significant volume of attacks from Python-based bots has been observed, suggesting a coordinated effort to exploit thousands of web apps," Imperva researcher Daniel Johnston said in an analysis. "These attacks appear tied to the proliferation of gambling-related sites, potentially as a response to the heightened government scrutiny ." The Thales-owned company said it has detected millions of requests originating from a Python client that includes a command to install GSocket (aka Global Socket), an open-source tool that can be used to establish a communication channel between two machines regardless of the network perimeter. It's worth noting that GSocket has been put to use in many a cryptojacking operation in recent months, not to mention even exploiting the access provi...

Cybersecurity researchers are warning of a new stealthy credit card skimmer campaign that targets WordPress e-commerce checkout pages by inserting malicious JavaScript code into a database table associated with the content management system (CMS). "This credit card skimmer malware targeting WordPress websites silently injects malicious JavaScript into database entries to steal sensitive payment details," Sucuri researcher Puja Srivastava said in a new analysis. "The malware activates specifically on checkout pages, either by hijacking existing payment fields or injecting a fake credit card form." The GoDaddy-owned website security company said it discovered the malware embedded into the WordPress wp_options table with the option "widget_block," thus allowing it to avoid detection by scanning tools and persist on compromised sites without attracting attention. In doing so, the idea is to insert the malicious JavaScript into an HTML block widget thr...

Threat hunters have disclosed a new "widespread timing-based vulnerability class" that leverages a double-click sequence to facilitate clickjacking attacks and account takeovers in almost all major websites. The technique has been codenamed DoubleClickjacking by security researcher Paulos Yibelo. "Instead of relying on a single click, it takes advantage of a double-click sequence," Yibelo said . "While it might sound like a small change, it opens the door to new UI manipulation attacks that bypass all known clickjacking protections, including the X-Frame-Options header or a SameSite: Lax/Strict cookie." Clickjacking , also called UI redressing, refers to an attack technique in which users are tricked into clicking on a seemingly innocuous web page element (e.g., a button), leading to the deployment of malware or exfiltration of sensitive data. DoubleClickjacking is a variation of this theme that exploits the gap between the start of a click and the...

Cisco on Monday updated an advisory to warn customers of active exploitation of a decade-old security flaw impacting its Adaptive Security Appliance (ASA). The vulnerability, tracked as CVE-2014-2120 (CVSS score: 4.3), concerns a case of insufficient input validation in ASA's WebVPN login page that could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a targeted user of the appliance. "An attacker could exploit this vulnerability by convincing a user to access a malicious link," Cisco noted in an alert released in March 2014. As of December 2, 2024, the networking equipment major has revised its bulletin to note that it has become aware of "additional attempted exploitation" of the vulnerability in the wild. The development comes shortly after cybersecurity firm CloudSEK revealed that the threat actors behind AndroxGh0st are leveraging an extensive list of security vulnerabilities in various internet-faci...

A now-patched security flaw in the Opera web browser could have enabled a malicious extension to gain unauthorized, full access to private APIs. The attack, codenamed CrossBarking , could have made it possible to conduct actions such as capturing screenshots, modifying browser settings, and account hijacking, Guardio Labs said. To demonstrate the issue, the company said it managed to publish a seemingly harmless browser extension to the Chrome Web Store that could then exploit the flaw when installed on Opera, making it an instance of a cross-browser-store attack. "This case study not only highlights the perennial clash between productivity and security but also provides a fascinating glimpse into the tactics used by modern threat actors operating just below the radar," Nati Tal, head of Guardio Labs, said in a report shared with The Hacker News. The issue has been addressed by Opera as of September 24, 2024, following responsible disclosure. That said, this is not th...

Is your store at risk? Discover how an innovative web security solution saved one global online retailer and its unsuspecting customers from an “evil twin” disaster. Read the full real-life case study here . The Invisible Threat in Online Shopping When is a checkout page, not a checkout page? When it's an “evil twin”! Malicious redirects can send unsuspecting shoppers to these perfect-looking fake checkout pages and steal their payment information, so could your store be at risk too? Discover how an innovative web security solution saved one global online retailer and its unsuspecting customers from an “evil twin” disaster. (You can read the full case study here ) Anatomy of an Evil Twin Attack In today's fast-paced world of online shopping, convenience often trumps caution. Shoppers quickly move through product selection to checkout, rarely scrutinizing the process. This lack of attention creates an opportunity for cybercriminals to exploit. The Deceptive Redirect The ...

The PCI DSS landscape is evolving rapidly. With the Q1 2025 deadline looming ever larger, businesses are scrambling to meet the stringent new requirements of PCI DSS v4.0. Two sections in particular, 6.4.3 and 11.6.1, are troublesome as they demand that organizations rigorously monitor and manage payment page scripts and use a robust change detection mechanism. With the deadline fast approaching and the consequences of non-compliance so severe, there is no room for complacency, so, in this article, we look at the best way to meet these complex coding requirements. PCI DSS v4: Understanding Requirements 6.4.3 and 11.6.1 These changes to PCI DSS in v4.0 acknowledge the urgent need to tighten client-side security in the face of pervasive supply-chain threats. They call for beefed-up payment page security to keep customers’ sensitive payment details safe from malicious script injection attacks: 6.4.3: To meet this requirement your organization needs to monitor and manage all payment ...