---
id: CVE-2026-94075
title: WordPress Newsletters plugin <= 4.18.1 - PHP Object Injection vulnerability
summary: >-
  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.
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-502
vendor: Tribulant Software
product: newsletters-lite
affected:
  - newsletters-lite <= 4.18.1
published: '2026-10-24'
updated: '2026-10-24'
sourceUpdated: '2026-10-24T08:00:11.463Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-94075'
references:
  - url: >-
      https://patchstack.com/database/wordpress/plugin/newsletters-lite/vulnerability/wordpress-newsletters-plugin-4-18-1-php-object-injection-vulnerability?_s_id=cve
tags:
  - cve.org
ingestedAt: '2026-10-24T08:55:26.807Z'
---

## Overview

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.

## Affected

- `newsletters-lite <= 4.18.1`

## Remediation

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