CVE-2026-2811: Unknown Ajaxify Comments

Medium severity, CVSS 5.4. EPSS: 0.3% chance of exploitation in the next 30 days.

The Ajaxify Comments WordPress plugin before 3.2 is vulnerable to HTTP Header Injection due to insufficient input sanitization and output escaping on user-supplied data. This makes it possible for unauthenticated attackers to inject arbitrary HTTP headers.

Affected products

• Unknown Ajaxify Comments: before 3.2 (fixed in 3.2)

Published 2026-09-02. Last modified 2026-09-03.