What is CVE-2025-53495?

CVE-2025-53495 is a critical-severity vulnerability in Wikimedia Foundation Mediawiki - Abusefilter Extension, classified under Missing Authorization. CVSS score: 9.1/10. Published 2025-07-07.

How severe is CVE-2025-53495?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Auth bypass in Wikimedia Foundation Mediawiki - Abusefilter Extension

CVE-2025-53495

Missing Authorization vulnerability in Wikimedia Foundation Mediawiki - AbuseFilter Extension allows Unauthorized Access.This issue affects Mediawiki - AbuseFilter Extension: from 1.43.X before 1.43.2.

Vulnerability class: Broken Access Control

EPSS: 0.003 (20.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Wikimedia Foundation Mediawiki - Abusefilter Extension — versions 1.43.x

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

Frequently asked questions

What is CVE-2025-53495?: CVE-2025-53495 is a critical-severity vulnerability in Wikimedia Foundation Mediawiki - Abusefilter Extension, classified under Missing Authorization. CVSS score: 9.1/10. Published 2025-07-07.
How severe is CVE-2025-53495?: Critical severity. CVSS v3 base score is 9.1 out of 10.