23 Oct 2026 15:48:27 UTC
Joomla Extension - joomlart.com - Open mail relay via contact AJAX endpoint in T4 Page Builder extension < 2.3.0
cve-program · CVE-2026-78374 · Published
CVE-2026-78374
T4 Page Builder extension for Joomla · Vulnerability
CVSS 4.0 6.9 MEDIUMCheck source for fixed versionsKEV status unknown
cve-program · CVE-2026-78374
PublishedJoomla 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).
Read the publisher's advisoryAffected versions, risk and source history
Exploitation and risk
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Risk history
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Advisory history
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