PT-2022-12580 · Mediawiki+1 · Mediawiki+1

Aidil Arief + 1 · Published 2021-12-20 · Updated 2024-03-06 · CVE-2021-46146

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions MediaWiki versions prior to 1.35.5 MediaWiki versions 1.36.x prior to 1.36.3 MediaWiki versions 1.37.x prior to 1.37.1

Description An issue was discovered in the WikibaseMediaInfo component, which is vulnerable to XSS via the caption fields for a given media file. This allows for potential exploitation through the manipulation of these fields.

Recommendations For MediaWiki versions prior to 1.35.5, update to version 1.35.5 or later. For MediaWiki versions 1.36.x prior to 1.36.3, update to version 1.36.3 or later. For MediaWiki versions 1.37.x prior to 1.37.1, update to version 1.37.1 or later. As a temporary workaround, consider restricting access to the WikibaseMediaInfo component until a patch is applied. Avoid using the caption fields in the affected media files until the issue is resolved.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

ALT-PU-2021-3561

ALT-PU-2022-1199

BIT-MEDIAWIKI-2021-46146

CVE-2021-46146

Affected Products

Alt Linux

Mediawiki

References · 6

• https://osv.dev/vulnerability/CVE-2021-46146 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-mediawiki-2021-46146 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-46146 · Security Note
• https://gerrit.wikimedia.org/r/q/I58d37fb59f998f5bec4a018bf9da96a777f8ff78 · Note
• https://t.me/cvenotify/25415 · Telegram Post
• https://phabricator.wikimedia.org/T293556 · Note