What is CVE-2026-22712?

CVE-2026-22712 is a medium-severity vulnerability in The Wikimedia Foundation Mediawiki - Approvedrevs Extension, classified under Improper Encoding or Escaping of Output. CVSS score: 4.3/10. Published 2026-01-09.

How severe is CVE-2026-22712?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Vulnerability in The Wikimedia Foundation Mediawiki - Approvedrevs Extension

CVE-2026-22712

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.

EPSS: 0.002 (11.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

The Wikimedia Foundation Mediawiki - Approvedrevs Extension — versions 1.45, 1.44, 1.43
Wikiworks Approved_revs — versions 1.39, 1.43, 1.44

Weakness classification (CWE)

CWE-116 — Improper Encoding or Escaping of Output

References

c4f26cc8-17ff-4c99-b5e2-38fc1793eacc (Exploit, Issue Tracking)
c4f26cc8-17ff-4c99-b5e2-38fc1793eacc (Patch)

Frequently asked questions

What is CVE-2026-22712?: CVE-2026-22712 is a medium-severity vulnerability in The Wikimedia Foundation Mediawiki - Approvedrevs Extension, classified under Improper Encoding or Escaping of Output. CVSS score: 4.3/10. Published 2026-01-09.
How severe is CVE-2026-22712?: Medium severity. CVSS v3 base score is 4.3 out of 10.