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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00241.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
wardee Mail logging & Catcher unaffected
Version Status Constraints
0 affected ≤ 2.1.12

No data.

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Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Loggers/LogHelper.php#L69 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Loggers/WpMail.php#L30 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/MailAdminTable.php#L149 cve-icon cve-icon
https://plugins.trac.wordpress.org/browser/wp-mail-catcher/tags/2.1.12/src/Views/LogModal.php#L83 cve-icon cve-icon
https://plugins.trac.wordpress.org/changeset?reponame=&old=3717442%40wp-mail-catcher&new=3717442%40wp-mail-catcher cve-icon cve-icon
https://www.wordfence.com/threat-intel/vulnerabilities/id/6a1d9d03-0216-484c-85ca-73f157595713?source=cve cve-icon cve-icon
History

Sat, 03 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Sat, 03 Oct 2026 07:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Mail logging <= 2.1.12 - Unauthenticated Stored Cross-Site Scripting via PHPMailer 'wp_mail_failed' Error Message
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-10-03T15:42:42.248Z

Reserved: 2026-09-18T20:19:15.745Z

Link: CVE-2026-93889

cve-icon Vulnrichment

Updated: 2026-10-03T15:38:49.635Z

cve-icon NVD

Status : Received

Published: 2026-10-03T07:16:48.680

Modified: 2026-10-03T16:16:44.600

Link: CVE-2026-93889

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-03T08:30:18Z

Weaknesses