CVE-2021-3137 : Vulnerability Insights and Analysis
Learn about CVE-2021-3137, an XSS vulnerability in XWiki 12.10.2, enabling attackers to execute malicious scripts. Explore impacts, technical details, and mitigation steps.
XWiki 12.10.2 is vulnerable to a cross-site scripting (XSS) attack via an SVG document uploaded to the comment section. This vulnerability allows malicious actors to execute scripts in the context of a user's browser, potentially leading to unauthorized actions.
Understanding CVE-2021-3137
This section provides an overview of the CVE-2021-3137 vulnerability and its implications.
What is CVE-2021-3137?
CVE-2021-3137 is a security vulnerability in XWiki 12.10.2 that enables attackers to exploit XSS through an SVG file uploaded to the comment section.
The Impact of CVE-2021-3137
The CVE-2021-3137 vulnerability can result in unauthorized script execution within a user's browser, posing a risk of account compromise and data theft.
Technical Details of CVE-2021-3137
Explore the technical aspects of the CVE-2021-3137 vulnerability to better understand its nature.
Vulnerability Description
XWiki 12.10.2 is susceptible to XSS attacks via specially crafted SVG documents uploaded to the comment feature, allowing threat actors to inject and execute malicious scripts.
Affected Systems and Versions
The impact of CVE-2021-3137 is specific to XWiki version 12.10.2, making systems with this version installed vulnerable to exploitation.
Exploitation Mechanism
Malicious actors can leverage the upload functionality of XWiki's comment section to introduce an SVG file containing malicious scripts, which are then executed in the context of the user's browser.
Mitigation and Prevention
Discover the steps to mitigate the risks associated with CVE-2021-3137 and safeguard your systems against potential attacks.
Immediate Steps to Take
Users should refrain from uploading or interacting with SVG files within XWiki 12.10.2 to mitigate the risk of XSS attacks. Administrators can also consider temporarily disabling the comment section until a patch is available.
Long-Term Security Practices
Employ best security practices such as input validation, content security policies, and regular security assessments to enhance the overall resilience of the system against XSS vulnerabilities.
Patching and Updates
It is vital to monitor official XWiki channels for security advisories and updates related to CVE-2021-3137. Applying patches promptly and keeping the software up to date can help address known security flaws and prevent exploitation.