---
id: CVE-2026-101325
title: >-
  Newsletters <= 4.18.1 - Authenticated (Subscriber+) SQL Injection via 'id'
  Parameter
summary: >-
  The Newsletters plugin for WordPress is vulnerable to time-based SQL Injection
  via the 'id' parameter in all versions up to, and including, 4.18.1 due to
  insufficient escaping on the user supplied parameter and lack of sufficient
  prepara…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-89
vendor: contrid
product: Newsletters
affected:
  - Newsletters <= 4.18.1
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-02T14:33:26.455170Z'
published: '2026-10-31'
updated: '2026-11-02'
sourceUpdated: '2026-11-02T14:33:34.571Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-101325'
references:
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/d4bc05a2-25f9-4276-8541-a77efc7bd617?source=cve
  - url: >-
      https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.18.1/models/subscriber.php#L1294
  - url: >-
      https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.18.1/wp-mailinglist-plugin.php#L5076
  - url: >-
      https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.18.1/includes/checkinit.php#L269
  - url: >-
      https://plugins.trac.wordpress.org/browser/newsletters-lite/tags/4.18.1/wp-mailinglist-plugin.php#L5008
  - url: >-
      https://plugins.trac.wordpress.org/changeset/3756587/newsletters-lite/trunk/wp-mailinglist-plugin.php
tags:
  - cve.org
epss: 0.00254
epssPercentile: 0.17153
ingestedAt: '2026-11-05T19:30:42.665Z'
---

## Overview

The Newsletters plugin for WordPress is vulnerable to time-based SQL Injection via the 'id' parameter in all versions up to, and including, 4.18.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. An attacker can obtain the required nonce and subscriberauth cookie without a WordPress account by simply subscribing through the public newsletter form and opening the management link sent via email; the ownership check verifies only the subscriber_id field and does not validate that the injected id parameter belongs to the authenticated subscriber.

## Affected

- `Newsletters <= 4.18.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.