CVE-2025-13820: Unknown Comments

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

The Comments WordPress plugin before 7.6.40 does not properly validate user's identity when using the disqus.com provider, allowing an attacker to log in to any user (when knowing their email address) when such user does not have an account on disqus.com yet.

Affected products

• Unknown Comments: before 7.6.40 (fixed in 7.6.40)

Published 2026-01-01. Last modified 2026-06-17.