CVE-2026-13176 Eventin < 4.1.21 - Contributor+ Server-Side Request Forgery

Low 2.7 Published Updated

Contributors can trigger blind server-side requests to arbitrary hosts via unvalidated webhook URLs in the Eventin WordPress plugin.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-13176?

CVE-2026-13176 is a low-severity server-side request forgery vulnerability in Unknown Eventin, published on 21 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

The Eventin WordPress plugin before 4.1.21 does not validate a user-supplied webhook URL stored on events nor verify event ownership, allowing users with contributor-level access and above to trigger blind server-side requests to arbitrary hosts.

Weakness: CWE-918

Which versions are affected by CVE-2026-13176?

How do I fix CVE-2026-13176?

No fix has been published for CVE-2026-13176 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-2026-13176 being exploited?

There is no known exploitation of CVE-2026-13176 in the wild and no public exploit code.

Sources

Also known as GHSA-v7v5-h6rx-g9vq.

Is CVE-2026-13176 in your software?

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