CVE-2023-3167

HIGH 7.2

Mail Queue <= 1.1 - Unauthenticated Stored Cross-Site Scripting via Email Subject

CVSS Score

7.2

EPSS Score

0.0%

EPSS Percentile

0th

The Mail Queue plugin for WordPress is vulnerable to Stored Cross-Site Scripting via an email subject in versions up to, and including, 1.1 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.

CWE	CWE-79
Vendor	wdm-team
Product	mail queue
Published	Jul 12, 2023
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

wdm-team / Mail Queue

0 ≤ 1.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/d4aaca22-76b9-42ec-a960-65d44d696324?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/2924661/mail-queue

Credits

Alex Thomas