What is CVE-2025-67484?

CVE-2025-67484 is a critical-severity vulnerability in Mediawiki, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2026-02-03.

How severe is CVE-2025-67484?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Improper input validation in Mediawiki

CVE-2025-67484

Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Api/ApiFormatXml.Php. This issue affects MediaWiki: from * before 1.39.16, 1.43.6, 1.44.3, 1.45.1.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.004 (32.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Mediawiki — versions 1.45.0
Wikimedia Foundation Mediawiki

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

c4f26cc8-17ff-4c99-b5e2-38fc1793eacc (Permissions Required)

Frequently asked questions

What is CVE-2025-67484?: CVE-2025-67484 is a critical-severity vulnerability in Mediawiki, classified under Improper Input Validation. CVSS score: 9.8/10. Published 2026-02-03.
How severe is CVE-2025-67484?: Critical severity. CVSS v3 base score is 9.8 out of 10.