Security restrictions bypass in MediaWiki - CVE-2021-30152

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Main Vulnerability Database Vulnerabilities #VU52025

Security restrictions bypass in MediaWiki - CVE-2021-30152

Published: April 12, 2021


Vulnerability identifier: #VU52025
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-30152
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions within MediaWiki API. A remote authenticated user can apply "protect" feature for pages to a higher level than they currently have permissions for.


Affected software

MediaWiki
Gentoo Linux
mediawiki (Debian package)

How to mitigate CVE-2021-30152

Install updates from vendor's website.

MediaWiki - addressed in versions 1.31.13, 1.35.2
mediawiki (Debian package) - update to 1:1.31.14-1~deb10u1

External References

Related Security Bulletins