CVE-2021-25894 : Exploit Details and Defense Strategies
Learn about CVE-2021-25894 impacting Magnolia CMS 6.1.3 to 6.2.3. Understand the XSS vulnerability, its impact, affected versions, and mitigation steps.
Magnolia CMS versions 6.1.3 to 6.2.3 are impacted by a stored cross-site scripting (XSS) vulnerability in the mgnlUserId parameter of /magnoliaPublic/travel/members/login.html.
Understanding CVE-2021-25894
This CVE involves a security flaw in Magnolia CMS versions 6.1.3 to 6.2.3 that could allow attackers to execute malicious scripts in the context of a user's session.
What is CVE-2021-25894?
The vulnerability in Magnolia CMS versions 6.1.3 to 6.2.3 enables attackers to inject and execute malicious scripts through the mgnlUserId parameter in /magnoliaPublic/travel/members/login.html, potentially leading to unauthorized access or data theft.
The Impact of CVE-2021-25894
If exploited, this vulnerability could result in unauthorized access to sensitive information, data manipulation, or full compromise of the affected systems running the vulnerable versions of Magnolia CMS.
Technical Details of CVE-2021-25894
This section provides specific technical details related to the CVE.
Vulnerability Description
The vulnerability is a stored cross-site scripting (XSS) issue in Magnolia CMS versions 6.1.3 to 6.2.3, residing in the mgnlUserId parameter of /magnoliaPublic/travel/members/login.html.
Affected Systems and Versions
Magnolia CMS versions 6.1.3 to 6.2.3 are confirmed to be affected by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by injecting malicious scripts into the mgnlUserId parameter of the login page, leading to the execution of unauthorized actions within the application.
Mitigation and Prevention
To address CVE-2021-25894, immediate steps and long-term security practices are crucial.
Immediate Steps to Take
It is recommended to update Magnolia CMS to a patched version, restrict access to the login page, and sanitize user inputs to prevent script injections.
Long-Term Security Practices
Implement regular security updates, conduct security audits, educate users about safe browsing habits, and employ web application firewalls to enhance overall security posture.
Patching and Updates
Ensure that your Magnolia CMS instance is regularly updated with the latest patches and security fixes to mitigate the risk associated with CVE-2021-25894.