MEDIUM 6.9 NVD

CVE-2026-78374

Joomla Extension - joomlart.com - Open mail relay via contact AJAX endpoint in T4 Page Builder extension < 2.3.0 - The front-end JSON editor endpoint exposes an

Joomla Extension - joomlart.com - Open mail relay via contact AJAX endpoint in T4 Page Builder extension < 2.3.0 - The front-end JSON editor endpoint exposes an action called contact that requires no authentication, no CSRF token, no captcha (when no captcha plugin is enabled) and has no rate limiting. The attacker fully controls the recipient, subject and HTML body, and the mail is sent from the site's configured sender identity (mailfrom/fromname).

References

https://www.joomlart.com/t4-builder/t4-joomla-page-builder

Published: 2026-09-10 · Source: NVD · Feed updated: 2026-09-11

This medium severity vulnerability with a CVSS score of 6.9 was published on 2026-09-10 via NVD.

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