CVE-2026-78374: CWE-201: Insertion of Sensitive Information Into Sent Data in joomlart.com T4 Page Builder extension for Joomla
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).
CVE-2026-78374: CWE-201: Insertion of Sensitive Information Into Sent Data in joomlart.com T4 Page Builder extension for Joomla
Description
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).
CVSS v4.0
Score 6.9medium
Affected software
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Joomla
- Date Reserved
- 2026-08-24T13:12:10.196Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6aa28170acd9273b49f2e32e
Added to database: 09/10/2026, 10:07:44 UTC
Last updated: 09/10/2026, 10:07:44 UTC
Views: 1
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