CVE-2025-49438 WordPress Simple Login Log plugin <= 1.1.3 - PHP Object Injection vulnerability

High 8.1 Published Updated

An attacker can exploit PHP object injection in the Simple Login Log 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-2025-49438?

CVE-2025-49438 is a high-severity unsafe deserialization vulnerability in Max Chirkov Simple Login Log, published on 20 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 Max Chirkov Simple Login Log allows Object Injection. This issue affects Simple Login Log: from n/a through 1.1.3.

Weakness: CWE-502

Which versions are affected by CVE-2025-49438?

How do I fix CVE-2025-49438?

No fix has been published for CVE-2025-49438 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-2025-49438 being exploited?

There is no known exploitation of CVE-2025-49438 in the wild and no public exploit code.

Sources

Also known as GHSA-6r75-pwjm-2jh4.

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