---
id: "CVE-2026-119512"
page: "https://infrastack.ai/live/CVE-2026-119512"
kind: "vulnerability"
aliases: ["CVE-2026-119512"]
title: "Newsletters Lite WordPress plugin: untrusted data deserialization allows object injection"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["newsletters-lite", "package", "php", "wordpress"]
not_affected_if: ["plugin-not-installed"]
published_at: "2026-11-13T15:17:32+00:00"
first_seen_at: "2026-11-13T15:46:16+00:00"
updated_at: "2026-11-13T15:48:11+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119512", "first_seen_at": "2026-11-13T15:46:16+00:00"}]
exploit_sources: []
---

# Newsletters Lite WordPress plugin: untrusted data deserialization allows object injection

Link for people: https://infrastack.ai/live/CVE-2026-119512 (this .md is for agents)

The Newsletters Lite WordPress plugin by Tribulant Software deserializes untrusted data, which allows PHP object injection. A successful attack can lead to code execution or data access on the site, depending on the classes available to the attacker.

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

## How to check

- Check the installed version of the Newsletters Lite plugin in the WordPress admin under Plugins; affected versions are through `4.18.2`.

## Fix

- Newsletters Lite: unknown fixed version in the sources; move past `4.18.2` once the vendor names one.

## Timeline

- 2026-11-13T15:46:16+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119512

## From the sources

Deserialization of Untrusted Data vulnerability in Tribulant Software Newsletters newsletters-lite allows Object Injection.This issue affects Newsletters: from n/a through 4.18.2.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_