CVE-2026-39442 WordPress PressMart theme <= 1.2.26 - PHP Object Injection vulnerability

Q: What is CVE-2026-39442?

CVE-2026-39442 is a high-severity unsafe deserialization vulnerability in PressLayouts PressMart, published on 17 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Q: Is CVE-2026-39442 being exploited?

There is no known exploitation of CVE-2026-39442 in the wild and no public exploit code.

Q: How do I fix CVE-2026-39442?

No fix has been published for CVE-2026-39442 yet. Limit exposure of the affected software until one is available.

High 8.1 Published 17 Jun 2026 Updated 17 Jun 2026

Unauthenticated attackers can exploit PHP object injection in the PressMart 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-2026-39442?

CVE-2026-39442 is a high-severity unsafe deserialization vulnerability in PressLayouts PressMart, published on 17 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Unauthenticated PHP Object Injection in PressMart <= 1.2.26 versions.

Weakness: CWE-502

Which versions are affected by CVE-2026-39442?

How do I fix CVE-2026-39442?

No fix has been published for CVE-2026-39442 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-2026-39442 being exploited?