CVE-2025-52740 WordPress Boldermail Plugin <= 2.4.0 - PHP Object Injection Vulnerability
An attacker can exploit PHP object injection in the Boldermail WordPress plugin to potentially execute arbitrary code.
- 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-2025-52740?
CVE-2025-52740 is a high-severity unsafe deserialization vulnerability in Hernan Villanueva Boldermail, published on 22 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Deserialization of Untrusted Data vulnerability in Hernan Villanueva Boldermail boldermail allows Object Injection.This issue affects Boldermail: from n/a through <= 2.4.0.
Weakness: CWE-502
Which versions are affected by CVE-2025-52740?
How do I fix CVE-2025-52740?
No fix has been published for CVE-2025-52740 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-2025-52740 being exploited?
There is no known exploitation of CVE-2025-52740 in the wild and no public exploit code.
Sources
Also known as GHSA-3vp5-f8x5-xvc5.