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Status published
Critical
CVE-2025-67911
WordPress Newsletters plugin <= 4.11 - PHP Object Injection vulnerability
Vulnerability Description
Deserialization of Untrusted Data vulnerability in Tribulant Software Newsletters newsletters-lite allows Object Injection.This issue affects Newsletters: from n/a through <= 4.11.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Skalucy | Patchstack Bug Bounty Program
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Affected Vendor
Tribulant Software
View all reports →Affected Software
Newsletters
Vulnerable Versions:
0
Timeline
Official Publish:
January 8th, 2026
Last Modified:
April 28th, 2026
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H