CVE-2025-58619 WordPress Falang multilanguage Plugin <= 1.3.65 - PHP Object Injection Vulnerability

High 8.8 Published Updated

An attacker can exploit PHP object injection in the Falang multilanguage 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
A user has to click or open something
Fix
None listed

What is CVE-2025-58619?

CVE-2025-58619 is a high-severity unsafe deserialization vulnerability in sbouey Falang multilanguage, published on 6 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Deserialization of Untrusted Data vulnerability in sbouey Falang multilanguage falang allows Object Injection.This issue affects Falang multilanguage: from n/a through <= 1.3.65.

Weakness: CWE-502

Which versions are affected by CVE-2025-58619?

How do I fix CVE-2025-58619?

No fix has been published for CVE-2025-58619 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-2025-58619 being exploited?

There is no known exploitation of CVE-2025-58619 in the wild and no public exploit code.

Sources

Also known as GHSA-5376-r6x9-788p.

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