Improper Authorization in MediaWiki - CVE-2021-36132
Published: July 9, 2021
Vulnerability identifier: #VU54642
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-36132
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to improper authorization enforcement in the FileImporter extension. A remote authenticated attacker can perform operations (specifically file uploads) that they should not be allowed to perform.
Affected software
MediaWiki
How to mitigate CVE-2021-36132
Install updates from vendor's website.
MediaWiki - addressed in versions 1.31.15, 1.35.3, 1.36.1