CVE-2025-31612 WordPress CBX Poll plugin <= 2.0.4 - PHP Object Injection vulnerability

Critical 9.8 Published Updated

An attacker can exploit PHP object injection in the CBX Poll 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-2025-31612?

CVE-2025-31612 is a critical unsafe deserialization vulnerability in Sabuj Kundu CBX Poll, published on 1 Apr 2025. 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 Sabuj Kundu CBX Poll cbxpoll allows Object Injection.This issue affects CBX Poll: from n/a through <= 2.0.4.

Weakness: CWE-502

Which versions are affected by CVE-2025-31612?

How do I fix CVE-2025-31612?

No fix has been published for CVE-2025-31612 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-2025-31612 being exploited?

There is no known exploitation of CVE-2025-31612 in the wild and no public exploit code.

Sources

Also known as GHSA-3q3v-vh74-59jw.

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