Search results for javascript injection | Breaking Cybersecurity News | The Hacker News

React conquered XSS? Think again. That's the reality facing JavaScript developers in 2025, where attackers have quietly evolved their injection techniques to exploit everything from prototype pollution to AI-generated code, bypassing the very frameworks designed to keep applications secure. Full 47-page guide with framework-specific defenses (PDF, free). JavaScript conquered the web, but with that victory came new battlefields. While developers embraced React, Vue, and Angular, attackers evolved their tactics, exploiting AI prompt injection, supply chain compromises, and prototype pollution in ways traditional security measures can't catch. A Wake-up Call: The Polyfill.io Attack In June 2024, a single JavaScript injection attack compromised over 100,000 websites in the biggest JavaScript injection attack of the year. The Polyfill.io supply chain attack , where a Chinese company acquired a trusted JavaScript library and weaponized it to inject malicious code, affected major pl...

When it comes to Android apps, even the simplest app could greatly compromise your privacy and security. Injecting malicious JavaScript into Android applications has drawn an increased attention from the hacking community as its market share spikes. According to security researcher Jeremy S. from Singapore, a critical vulnerability in the Feedly app left millions of android app users vulnerable to the JavaScript infections. Feedly is a very popular app available for iOS and Android devices, also integrated into hundreds of other third party apps, which offers its users to browse the content of their favourite blogs, magazines, websites and more at one place via RSS feed subscriptions. According to Google Play Store, more than 5 Million users have installed Feedly app into their Android devices. In a blogpost , the researcher reported that Feedly is vulnerable to JavaScript injection attack, which is originally referred as 'cross-site scripting' or XSS vulnerability, allows...

In an effort to mitigate a large class of potential cross-site scripting issues in Firefox, Mozilla has blocked execution of all inline scripts and potentially dangerous eval-like functions for built-in "about: pages" that are the gateway to sensitive preferences, settings, and statics of the browser. Firefox browser has 45 such internal locally-hosted about pages , some of which are listed below that you might have noticed or used at some point: about:config — panel to modify Firefox preferences and critical settings. about:downloads — your recent downloads done within Firefox. about:memory — shows the memory usage of Firefox. about:newtab — the default new tab page. about:plugins — lists all your plugins as well as other useful information. about:privatebrowsing — open a new private window. about:networking — displays networking information. To be noted, these changes do not affect how websites from the Internet work on the Firefox browser, but going forwar...

In today's rapidly evolving cyber threat landscape, organizations face increasingly sophisticated attacks targeting their applications. Understanding these threats and the technologies designed to combat them is crucial. This article delves into the mechanics of a common application attack, using the infamous Log4Shell vulnerability as an example, and demonstrates how Application Detection and Response (ADR) technology effectively safeguards against such zero-day threats. View the Contrast ADR white paper The anatomy of a modern application attack: Log4Shell To illustrate the complexity and severity of modern application attacks, let's examine an attack against the infamous Log4Shell vulnerability ( CVE-2021-44228 ) that sent shockwaves through the cybersecurity world in late 2021. This attack is a prime example of attack chaining, leveraging JNDI Injection, Expression Language (EL) Injection and Command Injection. Technology note : The CVE program catalogs, which publicly...

Skype zero day HTML/(Javascript) code injection Noptri Public Security Advisory has publised a working skype zero day vulnerability with POC for skype. Skype users need be aware of this vulnerability. Affected Software: Software: Skype <= 5.5.0.113 Affected Platforms: Windows (XP, Vista, 7) Problem Description: Skype suffers from a persistent code injection vulnerability due to a lack of input validation and output sanitization of following profile entries:     [+] home     [+] office     [+] mobile Proof of Concept: The following HTML codes can be used to trigger the described vulnerability: --- SNIP ---     [+] Home Phone Number:     <b>INJECTION HERE</b>     [+] Office Phone Number:     <center><i>INJECTION HERE</i></center>     [+] Mobile Phone Number:     <a href="#">INJECTION HERE</a> Impact: An attacker could for ...

A new piece of JavaScript malware has been observed attempting to steal users' online banking account credentials as part of a campaign that has targeted more than 40 financial institutions across the world. The activity cluster, which employs JavaScript web injections, is estimated to have led to at least 50,000 infected user sessions spanning North America, South America, Europe, and Japan. IBM Security Trusteer said it detected the campaign in March 2023. "Threat actors' intention with the web injection module is likely to compromise popular banking applications and, once the malware is installed, intercept the users' credentials in order to then access and likely monetize their banking information," security researcher Tal Langus  said . Attack chains are characterized by the use of scripts loaded from the threat actor-controlled server ("jscdnpack[.]com"), specifically targeting a page structure that's common to several banks. It's susp...

Preview : Web App Hacker's Handbook 2nd Edition ! The first draft of the new edition of WAHH is now completed, and the lengthy editing and production process is underway. Just to whet everyone's appetite, I'm posting below an exclusive extract from the Introduction, describing what has changed in the second edition. (And in a vain attempt to quell the tidal wave of questions: the book will be published in October; there won't be any more extracts; we don't need any proof readers, thanks.) What's Changed in the Second Edition? In the four years since the first edition of this book was published, much has changed and much has stayed the same. The march of new technology has, of course, continued apace, and this has given rise to specific new vulnerabilities and attacks. The ingenuity of hackers has also led to the development of new attack techniques, and new ways of exploiting old bugs. But neither of these factors, technological or human, has created a rev...

A previously undocumented threat actor dubbed Boolka has been observed compromising websites with malicious scripts to deliver a modular trojan codenamed BMANAGER . "The threat actor behind this campaign has been carrying out opportunistic SQL injection attacks against websites in various countries since at least 2022," Group-IB researchers Rustam Mirkasymov and Martijn van den Berk said in a report published last week. "Over the last three years, the threat actors have been infecting vulnerable websites with malicious JavaScript scripts capable of intercepting any data entered on an infected website." Boolka gets its name from the JavaScript code inserted into the website that beacons out to a command-and-control server named "boolka[.]tk" every time an unsuspecting visitor lands on the infected site. The JavaScript is also designed to collect and exfiltrate user inputs and interactions in a Base64-encoded format, indicating the use of the malware...

A group of Indian Hackers dubbed as I-HOS TEAM has successfully defaced a page on the sub domain of Oracle Corporation, biggest provider of enterprise software, computer hardware and Services. The users visiting the domain are being greeted with a custom webpage with black background and the theme song of an Indian Movie " BOSS ". The defacement page is displaying a logo with title " IHOS - Indian Hackers Online Squad " with a quotation for all the Indian hackers shows, " LOVE TO ALL INDIAN HACKERS OUT THERE. " Neither the website nor the server was actually compromised, but the Hacker going by online alias 'Bl@Ck Dr@GoN', actually found a page on the Oracle website that allows him to inject HTML/JavaScript code into the Oracle University Electronic Attendance webpage in order to modify the content, as shown in the screenshot provided to The Hacker News: Hacker told THN that anyone is able to edit the Student name on the website and can insert any code, which is not san...

Cybersecurity researchers have uncovered critical remote code execution vulnerabilities impacting major artificial intelligence (AI) inference engines, including those from Meta, Nvidia, Microsoft, and open-source PyTorch projects such as vLLM and SGLang. "These vulnerabilities all traced back to the same root cause: the overlooked unsafe use of ZeroMQ (ZMQ) and Python's pickle deserialization," Oligo Security researcher Avi Lumelsky said in a report published Thursday. At its core, the issue stems from what has been described as a pattern called ShadowMQ , in which the insecure deserialization logic has propagated to several projects as a result of code reuse. The root cause is a vulnerability in Meta's Llama large language model (LLM) framework ( CVE-2024-50050 , CVSS score: 6.3/9.3) that was patched by the company last October. Specifically, it involved the use of ZeroMQ's recv_pyobj() method to deserialize incoming data using Python's pickle module. ...

Details have emerged about a now-patched security flaw in the DeepSeek artificial intelligence (AI) chatbot that, if successfully exploited, could permit a bad actor to take control of a victim's account by means of a prompt injection attack . Security researcher Johann Rehberger, who has chronicled many a prompt injection attack targeting various AI tools, found that providing the input "Print the xss cheat sheet in a bullet list. just payloads" in the DeepSeek chat triggered the execution of JavaScript code as part of the generated response – a classic case of cross-site scripting (XSS). XSS attacks can have serious consequences as they lead to the execution of unauthorized code in the context of the victim's web browser. An attacker could take advantage of such flaws to hijack a user's session and gain access to cookies and other data associated with the chat.deepseek[.]com domain, thereby leading to an account takeover. "After some experimenting,...