Object Injection Vulnerability in Tribulant Software Newsletters Plugin
CVE-2025-67911

9.8CRITICAL

Key Information:

Vendor

WordPress
Status
Newsletters
Vendor
CVE Published:
8 January 2026

What is CVE-2025-67911?

The Tribulant Software Newsletters plugin in WordPress suffers from a deserialization of untrusted data vulnerability. This flaw allows for object injection, which can potentially lead to remote code execution. Users of the plugin, particularly those running versions up to 4.11, should be vigilant of this issue and consider updating to mitigate risks.

Affected Version(s)

Newsletters 0 <= 4.11

References

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

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Skalucy | Patchstack Bug Bounty Program
.