CVE-2025-68853 WordPress Contact Manager plugin <= 9.1.1 - PHP Object Injection vulnerability
An attacker can exploit PHP object injection in the Contact Manager plugin 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
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-68853?
CVE-2025-68853 is a high-severity unsafe deserialization vulnerability in Kleor Contact Manager, published on 20 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Deserialization of Untrusted Data vulnerability in Kleor Contact Manager contact-manager allows Object Injection.This issue affects Contact Manager: from n/a through <= 9.1.1.
Weakness: CWE-502
Which versions are affected by CVE-2025-68853?
How do I fix CVE-2025-68853?
No fix has been published for CVE-2025-68853 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-2025-68853 being exploited?
There is no known exploitation of CVE-2025-68853 in the wild and no public exploit code.
Sources
Also known as GHSA-v6x7-wpp7-g26g.