CVE-2026-51833 Server-side request forgery in n/a
Administrators or RSS feed contributors can exploit SSRF to enumerate internal services or expose the server's original IP address.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-51833?
CVE-2026-51833 is a high-severity server-side request forgery vulnerability in n/a, published on 17 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Xenforo 2.3.8 is vulnerable to SSRF. Attackers that have administrator privileges or are able to add/save RSS feeds can enumerate internal services (ports) or expose the original IP address of the server.
Weakness: CWE-918
Which versions are affected by CVE-2026-51833?
How do I fix CVE-2026-51833?
No fix has been published for CVE-2026-51833 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-51833 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-51833 exists.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-9p4j-p5qx-7x44.