CVE-2021-26039 : Exploit Details and Defense Strategies
Explore the details of CVE-2021-26039, a Cross-Site Scripting (XSS) vulnerability in Joomla! CMS versions 3.0.0-3.9.27. Learn about its impact, affected systems, exploitation, and mitigation steps.
This article provides detailed information about CVE-2021-26039, a Cross-Site Scripting (XSS) vulnerability found in Joomla! CMS versions 3.0.0 through 3.9.27.
Understanding CVE-2021-26039
CVE-2021-26039 is a security vulnerability discovered in Joomla! CMS affecting versions 3.0.0 through 3.9.27. The vulnerability arises due to inadequate escaping in the imagelist view of com_media, leading to a XSS vulnerability.
What is CVE-2021-26039?
CVE-2021-26039 is a Cross-Site Scripting (XSS) vulnerability identified in Joomla! CMS versions 3.0.0 through 3.9.27. It allows attackers to inject malicious scripts into web pages viewed by other users.
The Impact of CVE-2021-26039
The impact of CVE-2021-26039 includes the potential for attackers to execute arbitrary scripts on the victim's browser, leading to various security risks such as data theft, session hijacking, and website defacement.
Technical Details of CVE-2021-26039
CVE ID: CVE-2021-26039 Published Date: July 6, 2021 Affected Versions: Joomla! CMS 3.0.0-3.9.27 CVSS Score: N/A
Vulnerability Description
The vulnerability in com_media's imagelist view allows attackers to perform Cross-Site Scripting (XSS) attacks by injecting malicious scripts into web pages.
Affected Systems and Versions
Joomla! CMS versions 3.0.0 through 3.9.27 are affected by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting crafted scripts into the imagelist view of com_media, potentially impacting users who access these pages.
Mitigation and Prevention
It is crucial to take immediate steps to mitigate the risks associated with CVE-2021-26039 and prevent potential exploitation.
Immediate Steps to Take
- Update Joomla! CMS to the latest secure version that includes patches for this vulnerability.
- Implement content security policies and input validation mechanisms to mitigate XSS risks.
Long-Term Security Practices
- Regularly monitor Joomla! security advisories and apply security patches promptly.
- Conduct regular security audits and penetration testing to identify and address vulnerabilities.
Patching and Updates
Ensure timely installation of security patches provided by Joomla! to address the XSS vulnerability in com_media's imagelist view.