---
id: CVE-2026-93889
title: >-
  The Mail logging – WP Mail Catcher plugin for WordPress is vulnerable to
  Stored Cross-Site Scripting via PHPMailer 'wp_mail_failed' Error Message in
  all versions up to, and including, 2.1.12 due to insufficient input
  sanitization and out…
summary: >-
  The Mail logging – WP Mail Catcher plugin for WordPress is vulnerable to
  Stored Cross-Site Scripting via PHPMailer 'wp_mail_failed' Error Message in
  all versions up to, and including, 2.1.12 due to insufficient input
  sanitization and out…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
vendor: wardee
product: Mail logging & Catcher
affected:
  - mail_logging_catcher <= 2.1.12
published: '2026-10-03'
updated: '2026-10-03'
sourceUpdated: '2026-10-03T07:16:48.680'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93889'
references:
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Loggers/LogHelper.php#L69
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Loggers/WpMail.php#L30
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/MailAdminTable.php#L149
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Views/LogModal.php#L83
    label: security@wordfence.com
  - url: >-
      https://plugins.trac.wordpress.org/changeset?reponame=&old=3717442%40wp-mail-catcher&new=3717442%40wp-mail-catcher
    label: security@wordfence.com
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/6a1d9d03-0216-484c-85ca-73f157595713?source=cve
    label: security@wordfence.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-10-03T07:40:49.054Z'
---

## Overview

The Mail logging – WP Mail Catcher plugin for WordPress is vulnerable to Stored Cross-Site Scripting via PHPMailer 'wp_mail_failed' Error Message in all versions up to, and including, 2.1.12 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires a separately installed plugin, such as Contact Form 7, that passes unauthenticated user-controlled input into mail fields whose content PHPMailer will include in its failure error message.

## Remediation

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