CVE-2026-24378 WordPress EventPrime plugin <= 4.2.8.0 - PHP Object Injection vulnerability
An attacker can exploit PHP object injection in the EventPrime WordPress plugin to potentially execute arbitrary code.
- 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-2026-24378?
CVE-2026-24378 is a critical unsafe deserialization vulnerability in Metagauss EventPrime, published on 25 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Deserialization of Untrusted Data vulnerability in Metagauss EventPrime eventprime-event-calendar-management allows Object Injection.This issue affects EventPrime: from n/a through <= 4.2.8.0.
Weakness: CWE-502
Which versions are affected by CVE-2026-24378?
How do I fix CVE-2026-24378?
No fix has been published for CVE-2026-24378 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-24378 being exploited?
There is no known exploitation of CVE-2026-24378 in the wild and no public exploit code.
Sources
Also known as GHSA-544w-wmqh-vq4j.