CVE-2026-57621 WordPress Booktics plugin <= 1.0.21 - PHP Object Injection vulnerability
Unauthenticated attackers can exploit PHP object injection in the Booktics plugin 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-2026-57621?
CVE-2026-57621 is a critical unsafe deserialization vulnerability in Arraytics Booktics, published on 2 Jul 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 Booktics <= 1.0.21 versions.
Weakness: CWE-502
Which versions are affected by CVE-2026-57621?
How do I fix CVE-2026-57621?
No fix has been published for CVE-2026-57621 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-2026-57621 being exploited?
There is no known exploitation of CVE-2026-57621 in the wild and no public exploit code.
Sources
Also known as GHSA-p7cq-jc3q-mqj2.