What’s Vulnerable › Vulnerabilities
CVE-2026-109401: WP Mail Logging <= 1.17.0 - Authenticated (Administrator+) Sensitive Information Exposure in LIKE Wildcard in Personal Data Export Email
- Severity: low (CVSS 2.7 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-16 · updated 2026-10-16
- Weakness: CWE-200
Description
The WP Mail Logging plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 1.17.0 via the 'email_address' parameter. This makes it possible for authenticated attackers, with administrator-level access and above, to extract complete logged mail rows belonging to other users — including recipient addresses, message subjects, full message bodies, and any URLs contained therein — whose addresses happen to match the wildcard. Exploitation requires an administrator to process a personal-data export request for the attacker's email address via the standard WordPress privacy workflow, and the attacker's address must contain a LIKE wildcard character (such as an underscore) that matches at least one other user's address in the mail log.
Affected products
- smub WP Mail Logging: through 1.17.0
References
- https://plugins.trac.wordpress.org/browser/wp-mail-logging/tags/1.17.0/lib/vendor/brandonwamboldt/wp-orm/src/Query.php#L399
- https://plugins.trac.wordpress.org/browser/wp-mail-logging/tags/1.17.0/src/WPML_PrivacyController.php#L76
- https://plugins.trac.wordpress.org/browser/wp-mail-logging/tags/1.17.0/src/WPML_PrivacyController.php#L82
- https://plugins.trac.wordpress.org/changeset/3746095/wp-mail-logging/trunk/src/WPML_PrivacyController.php?old=3464813&old_path=wp-mail-logging%2Ftrunk%2Fsrc%2FWPML_PrivacyController.php
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3746095%40wp-mail-logging%2Ftags%2F1.17.1&old=3705796%40wp-mail-logging%2Ftags%2F1.17.0
- https://www.wordfence.com/threat-intel/vulnerabilities/id/f2b96f36-090d-4ed3-aa2c-dafa89d255cc?source=cve
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