CVE-2026-94075

WordPress Newsletters plugin <= 4.18.1 - PHP Object Injection vulnerability

Published Oct 24, 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 4.18.1.

Remediation

Vendor Solution

Update the WordPress Newsletters plugin to the latest available version (at least 4.18.2).

Tracking

Sign in to view the affected projects.

Advisories

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

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

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 4.18.1.
Title WordPress Newsletters plugin <= 4.18.1 - PHP Object Injection vulnerability
Weaknesses CWE-502
References
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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Patchstack
Published
Updated
Oct 24, 2026, 2:46 PM
Reserved
Sep 20, 2026, 12:21 AM
Status
Deferred
Published
Oct 24, 2026, 8:16 AM
Modified
Oct 26, 2026, 1:41 PM