CVE-2025-54686 WordPress Exertio Theme <= 1.3.2 - PHP Object Injection Vulnerability

Critical 9.8 Published Updated

An attacker can exploit unsafe deserialization in the Exertio WordPress theme to potentially execute arbitrary code on the server.

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-2025-54686?

CVE-2025-54686 is a critical unsafe deserialization vulnerability in scriptsbundle Exertio, published on 14 Aug 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 scriptsbundle Exertio exertio allows Object Injection.This issue affects Exertio: from n/a through <= 1.3.2.

Weakness: CWE-502

Which versions are affected by CVE-2025-54686?

How do I fix CVE-2025-54686?

No fix has been published for CVE-2025-54686 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-2025-54686 being exploited?

There is no known exploitation of CVE-2025-54686 in the wild and no public exploit code.

Sources

Also known as GHSA-33q3-w4gf-476f.

Is CVE-2025-54686 in your software?

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