CVE-2025-39565 WordPress MelaPress Login Security plugin <= 2.1.0 - PHP Object Injection Vulnerability

Medium 6.6 Published Updated

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

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-39565?

CVE-2025-39565 is a medium-severity unsafe deserialization vulnerability in MelaPress Login Security, published on 16 Apr 2025. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Deserialization of Untrusted Data vulnerability in Melapress MelaPress Login Security melapress-login-security allows Object Injection.This issue affects MelaPress Login Security: from n/a through <= 2.1.0.

Weakness: CWE-502

Which versions are affected by CVE-2025-39565?

It affects 1 product.

Products include Melapress Melapress Login Security.

How do I fix CVE-2025-39565?

No fix has been published for CVE-2025-39565 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-2025-39565 being exploited?

There is no known exploitation of CVE-2025-39565 in the wild and no public exploit code.

Sources

Also known as GHSA-7gv9-65q7-v834.

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