CVE-2025-68526 WordPress Modal Popup Box plugin <= 1.6.1 - PHP Object Injection vulnerability

High 8.8 Published Updated

An attacker can exploit PHP object injection in the Modal Popup Box plugin to potentially execute arbitrary code on the WordPress site.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-68526?

CVE-2025-68526 is a high-severity unsafe deserialization vulnerability in Modal Popup Box, published on 20 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Deserialization of Untrusted Data vulnerability in A WP Life Modal Popup Box modal-popup-box allows Object Injection.This issue affects Modal Popup Box: from n/a through <= 1.6.1.

Weakness: CWE-502

Which versions are affected by CVE-2025-68526?

How do I fix CVE-2025-68526?

No fix has been published for CVE-2025-68526 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-2025-68526 being exploited?

There is no known exploitation of CVE-2025-68526 in the wild and no public exploit code.

Sources

Also known as GHSA-wv4q-94jw-h996.

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