---
id: "CVE-2026-116863"
kind: "vulnerability"
aliases: ["CVE-2026-116863"]
title: "Newsletters Lite WordPress plugin: CSRF flaw lets attackers act as admins"
severity: "critical"
cvss: 9.6
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["newsletters-lite", "package", "self-hosted", "wordpress"]
not_affected_if: ["plugin-not-installed"]
published_at: "2026-10-27T16:17:30+00:00"
first_seen_at: "2026-10-27T16:33:07+00:00"
updated_at: "2026-10-27T16:33:55+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116863", "first_seen_at": "2026-10-27T16:33:07+00:00"}]
---

# Newsletters Lite WordPress plugin: CSRF flaw lets attackers act as admins

The Newsletters Lite WordPress plugin from Tribulant Software has a cross-site request forgery flaw in versions through 4.18.2. A logged-in administrator who visits a malicious page could be tricked into making changes to the plugin's settings or data without knowing.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed version of Newsletters Lite in the WordPress admin plugins list, or run `wp plugin get newsletters-lite --field=version`
- Confirm whether the plugin is active on the site

## Fix

- Update Newsletters Lite to a version later than `4.18.2`, as published by the vendor (fixed version unknown from sources)

## Timeline

- 2026-10-27T16:33:07+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-116863

## From the sources

Cross-Site Request Forgery (CSRF) vulnerability in Tribulant Software Newsletters newsletters-lite allows Cross Site Request Forgery.This issue affects Newsletters: from n/a through 4.18.2.

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