Deserialization of Untrusted Data in Kleor Contact Manager by Kleor
CVE-2025-68853

8.8HIGH

Key Information:

Vendor

WordPress
Status
Contact Manager
Vendor
CVE Published:
20 February 2026

What is CVE-2025-68853?

A deserialization vulnerability exists in Kleor Contact Manager, which allows for object injection through untrusted data. This security flaw can be exploited by attackers to gain unauthorized access or execute arbitrary code. Affected versions include all prior to 9.1.1, making it critical for users of the Contact Manager to apply necessary updates to safeguard their systems.

Affected Version(s)

Contact Manager 0 <= 9.1.1

References

https://patchstack.com/database/Wordpress/Plugin/contact-...
vdb-entry

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Skalucy | Patchstack Bug Bounty Program
.