CVE-2025-52738: Wikimedia Foundation Wikipedia Preview

Medium severity, CVSS 6.5. EPSS: 0.3% chance of exploitation in the next 30 days.

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.

Affected products

• Wikimedia Foundation Wikipedia Preview: up to and including 1.15.0

Published 2025-10-22. Last modified 2026-10-08.