CVE-2024-54367 WordPress ForumWP plugin <= 2.1.0 - PHP Object Injection vulnerability

Q: What is CVE-2024-54367?

CVE-2024-54367 is a critical unsafe deserialization vulnerability in Ultimate Member ForumWP, published on 16 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Q: Is CVE-2024-54367 being exploited?

There is no known exploitation of CVE-2024-54367 in the wild and no public exploit code.

Q: How do I fix CVE-2024-54367?

No fix has been published for CVE-2024-54367 yet. Limit exposure of the affected software until one is available.

Critical 9.8 Published 16 Dec 2024 Updated 28 Apr 2026

An attacker can exploit PHP object injection in the ForumWP plugin to potentially execute arbitrary code on the WordPress site.

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-2024-54367?

CVE-2024-54367 is a critical unsafe deserialization vulnerability in Ultimate Member ForumWP, published on 16 Dec 2024. 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 Ultimate Member ForumWP forumwp allows Object Injection.This issue affects ForumWP: from n/a through <= 2.1.0.

Weakness: CWE-502

Which versions are affected by CVE-2024-54367?

It affects 1 product.

Products include Ultimatemember Forumwp.

How do I fix CVE-2024-54367?

No fix has been published for CVE-2024-54367 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-2024-54367 being exploited?

There is no known exploitation of CVE-2024-54367 in the wild and no public exploit code.

Sources

Also known as GHSA-mrfc-m82j-82wf.