CVE-2015-2941: XSS
Cross-site scripting (XSS) vulnerability in MediaWiki before 1.19.24, 1.2x before 1.23.9, and 1.24.x before 1.24.2, when using HHVM, allows remote attackers to inject arbitrary web script or HTML via an invalid parameter in a wddx format request to api.php, which is not properly handled in an error message, related to unsafe calls to wddxserializevalue.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2015-2941?
CVE-2015-2941 is considered a medium severity vulnerability due to its potential for remote exploitation via cross-site scripting.
How do I fix CVE-2015-2941?
To fix CVE-2015-2941, upgrade MediaWiki to version 1.19.24, 1.23.9, or 1.24.2 or later.
What types of systems are affected by CVE-2015-2941?
CVE-2015-2941 affects MediaWiki versions prior to 1.19.24, various 1.20.x versions, 1.21.x versions, 1.22.x versions, and 1.23.x versions, specifically when using HHVM.
What kind of attacks can exploit CVE-2015-2941?
CVE-2015-2941 can be exploited for cross-site scripting (XSS) attacks, allowing attackers to inject arbitrary web scripts or HTML.
Is there a workaround for CVE-2015-2941 if I cannot upgrade?
If you cannot upgrade, you can try to limit access to the affected API endpoints or implement input validation to mitigate potential XSS risks.