Improper Encoding or Escaping of Output due to magic word replacement in ParserAfterTidy vulnerability in The Wikimedia Foundation Mediawiki - ApprovedRevs Extension allows Input Data Manipulation.This issue affects Mediawiki - ApprovedRevs Extension: 1.45, 1.44, 1.43, 1.39.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements Present

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact Low

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00013.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
The Wikimedia Foundation Mediawiki - ApprovedRevs Extension unaffected
Version Status Constraints
1.45 affected —
1.44 affected —
1.43 affected —
1.39 affected —

Configuration 1 [-]

OR cpe:2.3:a:wikiworks:approved_revs:1.39:*:*:*:*:mediawiki:*:*
cpe:2.3:a:wikiworks:approved_revs:1.43:*:*:*:*:mediawiki:*:*
cpe:2.3:a:wikiworks:approved_revs:1.44:*:*:*:*:mediawiki:*:*
cpe:2.3:a:wikiworks:approved_revs:1.45:*:*:*:*:mediawiki:*:*

No data.

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Project Subscriptions

Vendors Products
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Wikimedia Subscribe
Mediawiki-approvedrevs Extension Subscribe
Wikiworks Subscribe
Approved Revs Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://gerrit.wikimedia.org/r/q/Iee1bf1cbc8a519899e7f9dde508856bd4e5a5d2a cve-icon cve-icon
https://phabricator.wikimedia.org/T412068 cve-icon cve-icon cve-icon
History

Thu, 12 Feb 2026 18:45:00 +0000

Type Values Removed Values Added
First Time appeared Wikiworks
Wikiworks approved Revs
CPEs cpe:2.3:a:wikiworks:approved_revs:1.39:*:*:*:*:mediawiki:*:*
cpe:2.3:a:wikiworks:approved_revs:1.43:*:*:*:*:mediawiki:*:*
cpe:2.3:a:wikiworks:approved_revs:1.44:*:*:*:*:mediawiki:*:*
cpe:2.3:a:wikiworks:approved_revs:1.45:*:*:*:*:mediawiki:*:*
Vendors & Products Wikiworks
Wikiworks approved Revs
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'}

Fri, 09 Jan 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 09 Jan 2026 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Mediawiki
Mediawiki mediawiki
Wikimedia
Wikimedia mediawiki-approvedrevs Extension
Vendors & Products Mediawiki
Mediawiki mediawiki
Wikimedia
Wikimedia mediawiki-approvedrevs Extension

Fri, 09 Jan 2026 00:15:00 +0000

Type Values Removed Values Added
Description Improper Encoding or Escaping of Output due to magic word replacement in ParserAfterTidy vulnerability in The Wikimedia Foundation Mediawiki - ApprovedRevs Extension allows Input Data Manipulation.This issue affects Mediawiki - ApprovedRevs Extension: 1.45, 1.44, 1.43, 1.39.
Title ApprovedRevs allows bypassing the inline CSS sanitizer
Weaknesses CWE-116
References
Metrics cvssV4_0

{'score': 2.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published:

Updated: 2026-01-09T19:15:28.083Z

Reserved: 2026-01-08T23:23:42.385Z

Link: CVE-2026-22712

cve-icon Vulnrichment

Updated: 2026-01-09T19:15:25.619Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-09T00:15:45.837

Modified: 2026-02-12T17:50:28.073

Link: CVE-2026-22712

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-09T13:24:05Z

Weaknesses