Stored XSS Vulnerability in WordPress: A Critical Security Flaw
Summary
DEBIAN-CVE-2024-31111: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Automattic WordPress allows Stored XSS.This issue affects WordPress: from 6.5 through 6.5.4, from 6.4 through 6... Affects wordpress versions < 6.5.5+dfsg1-1. Fixed in 6.5.5+dfsg1-1. How to fix ↓
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Background
WordPress is a widely-used open-source content management system (CMS) that allows users to create and manage websites easily. It is known for its flexibility, extensive plugin ecosystem, and user-friendly interface. However, like any software, WordPress can be susceptible to security vulnerabilities, including cross-site scripting (XSS) attacks. This specific vulnerability allows attackers to inject malicious scripts into web pages, potentially compromising user data and site integrity.
Vulnerability Detail
The vulnerability identified as DEBIAN-CVE-2024-31111 is an improper neutralization of input during web page generation, leading to a Stored XSS issue in WordPress. This flaw affects multiple versions of WordPress, specifically from 6.5 to 6.5.4, 6.4 to 6.4.4, 6.3 to 6.3.4, 6.2 to 6.2.5, 6.1 to 6.1.6, 6.0 to 6.0.8, and 5.9 to 5.9.9. Attackers can exploit this vulnerability to inject malicious scripts that will be stored on the server and executed in the browsers of users who visit the affected pages, potentially leading to data theft, session hijacking, or defacement of the website.
How To Fix
Minimum fixed version
6.5.5+dfsg1-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade wordpressTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, users can limit the exposure to this vulnerability by disabling any plugins or themes that are not actively used, as these may introduce additional attack vectors. Additionally, implementing a web application firewall (WAF) can help filter out malicious requests.
Conclusion
The Stored XSS vulnerability in WordPress poses significant risks to users and site integrity. It is crucial to update to the latest patched version to safeguard against potential attacks. Regular monitoring and proactive security measures can help maintain the security of your WordPress installation.
See every vulnerability recorded for wordpress →
FAQ
Stored XSS is a type of security vulnerability that allows an attacker to inject malicious scripts into web pages that are then stored on the server. When users visit the affected page, the script executes in their browsers.
If you are using WordPress versions from 5.9 to 6.5.4, your site may be vulnerable. You can check your version in the WordPress admin dashboard or by using tools like Vulert.
The risks include data theft, unauthorized access to user accounts, and potential defacement of the website, which can harm your site's reputation and user trust.
Yes, you can use Vulert, which monitors and alerts for open-source vulnerabilities in your software by analyzing a manifest file like package-lock.json.
If an immediate update is not possible, consider implementing security measures such as a web application firewall and disabling unused plugins to mitigate risks.
References
Related vulnerabilities
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