CVE-2026-2811 Ajaxify Comments < 3.2 - Unauthenticated HTTP Header Injection
Unauthenticated attackers can inject arbitrary HTTP headers in the Ajaxify Comments WordPress plugin due to insufficient input sanitization.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-2811?
CVE-2026-2811 is a medium-severity vulnerability in Unknown Ajaxify Comments, published on 2 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-113
Which versions are affected by CVE-2026-2811?
How do I fix CVE-2026-2811?
No fix has been published for CVE-2026-2811 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-2811 being exploited?
There is no known exploitation of CVE-2026-2811 in the wild and no public exploit code.
Sources
Also known as GHSA-jxm3-h8qw-wgcx.