CVE-2026-22453 WordPress Pets Club theme <= 2.3 - PHP Object Injection vulnerability
An attacker can exploit PHP object injection in the Pets Club theme 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
- Not needed
- Fix
- None listed
What is CVE-2026-22453?
CVE-2026-22453 is a critical unsafe deserialization vulnerability in ThemeREX Pets Club, published on 5 Mar 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 ThemeREX Pets Club petclub allows Object Injection.This issue affects Pets Club: from n/a through <= 2.3.
Weakness: CWE-502
Which versions are affected by CVE-2026-22453?
How do I fix CVE-2026-22453?
No fix has been published for CVE-2026-22453 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-2026-22453 being exploited?
There is no known exploitation of CVE-2026-22453 in the wild and no public exploit code.
Sources
Also known as GHSA-2hqj-54fh-m5xp.