CVE-2026-93889 Mail logging – WP Mail Catcher - Stored XSS

Mail logging – WP Mail Catcher plugin for WordPress <= 2.1.12 contains a stored cross-site scripting caused by insufficient input sanitization and output escaping in PHPMailer 'wp_mail_failed' error message, letting unauthenticated attackers inject scripts executed when users access injected pages, exploit requires a separately installed plugin passing user input to mail fields.

CVSS base score 7.2 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.24% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Stored XSS
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Published
3 October 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Update to the latest version of Mail logging – WP Mail Catcher.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs