PT-2021-21129 · Mediawiki+1 · Mediawiki+1

Umherirrender · Published 2021-06-12 · Updated 2024-03-06 · CVE-2021-36132

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: MediaWiki versions through 1.36

Description: An issue was discovered in the FileImporter extension. For certain relaxed configurations of the $wgFileImporterRequiredRight variable, it might not validate all appropriate user rights, thus allowing a user with insufficient rights to perform operations, specifically file uploads, that they should not be allowed to perform.

Recommendations: For versions through 1.36, consider restricting the use of the FileImporter extension until a patch is available, or review and adjust the configuration of the $wgFileImporterRequiredRight variable to ensure proper validation of user rights.

Exploit

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

ALT-PU-2021-1991

ALT-PU-2021-2091

BIT-MEDIAWIKI-2021-36132

CVE-2021-36132

Affected Products

Alt Linux

Mediawiki

References · 7

• 🔥 https://phabricator.wikimedia.org/T280590 · Exploit
• https://gerrit.wikimedia.org/r/q/I8ff2a67abd2c118a3469e4410eac2a451bfa76c3 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-mediawiki-2021-36132 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-36132 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-36132 · Security Note
• https://t.me/cibsecurity/25892 · Telegram Post
• https://t.me/cvenotify/16978 · Telegram Post