CVE-2026-39555 WordPress Askka theme <= 1.3.1 - PHP Object Injection vulnerability

High 8.1 Published Updated

An attacker can exploit PHP object injection in the Askka WordPress theme to potentially execute arbitrary code.

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-2026-39555?

CVE-2026-39555 is a high-severity unsafe deserialization vulnerability in Elated-Themes Askka, published on 2 Jun 2026. 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 Elated-Themes Askka allows Object Injection.

This issue affects Askka: from n/a through 1.3.1.

Weakness: CWE-502

Which versions are affected by CVE-2026-39555?

How do I fix CVE-2026-39555?

No fix has been published for CVE-2026-39555 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-2026-39555 being exploited?

There is no known exploitation of CVE-2026-39555 in the wild and no public exploit code.

Sources

Also known as GHSA-w594-jcp9-58h9.

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