WP Mail Logging <= 1.17.0 — Authenticated (Administrator+) Sensitive Information Exposure in LIKE Wildcard in Personal Data Export Email

Am I affected?

• Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WP Mail Logging.
• No admin access? Run a passive check of your site. It reads public files only.

What to do

1. Update to version 1.17.1, or a newer patched version
2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
3. Watch WP Mail Logging to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Sawyer.

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.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

• Advisorywordfence.com

Related CVEs

Timeline

1. Oct 15, 2026

   CVE published

   Severity low, CVSS 2.7

2. Nov 13, 2026

   Record last updated