What is CVE-2025-52738?

CVE-2025-52738 is a medium-severity vulnerability in Wikimedia Foundation Wikipedia Preview, classified under Missing Authorization. CVSS score: 6.5/10. Published 2025-10-22.

How severe is CVE-2025-52738?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Wikimedia Foundation Wikipedia Preview

CVE-2025-52738

Missing Authorization vulnerability in Wikimedia Foundation Wikipedia Preview wikipedia-preview allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Wikipedia Preview: from n/a through <= 1.15.0.

Vulnerability class: Broken Access Control

EPSS: 0.003 (21.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.

Affected products

Wikimedia Foundation Wikipedia Preview — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

audit@patchstack.com (vdb-entry)

Frequently asked questions

What is CVE-2025-52738?: CVE-2025-52738 is a medium-severity vulnerability in Wikimedia Foundation Wikipedia Preview, classified under Missing Authorization. CVSS score: 6.5/10. Published 2025-10-22.
How severe is CVE-2025-52738?: Medium severity. CVSS v3 base score is 6.5 out of 10.