CVE-2025-67911

WordPress Newsletters plugin <= 4.11 - PHP Object Injection vulnerability

Published Jan 8, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Tribulant
Tribulant newsletters
Wordpress
Wordpress wordpress
Vendors & Products Tribulant
Tribulant newsletters
Wordpress
Wordpress wordpress
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Type Values Removed Values Added
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.
Title WordPress Newsletters plugin <= 4.11 - PHP Object Injection vulnerability
Weaknesses CWE-502
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Patchstack
Published
Updated
Apr 28, 2026, 7:26 PM
Reserved
Dec 15, 2025, 9:59 AM
Status
Deferred
Published
Jan 8, 2026, 10:15 AM
Modified
Oct 7, 2026, 9:10 AM