GHSA-h72c-xx3w-w8h7High

Concrete CMS is vulnerable to Stored XSS via OAuth integration name

Published
May 21, 2026
Last Modified
June 24, 2026

🔗 CVE IDs covered (1)

📋 Description

Concrete CMS 9.5.0 and below is vulnerable to Stored XSS via OAuth integration name. The OAuth authorize template renders the integration name (admin-controlled) through Concrete's t() translation helper as a sprintf-style format. The ... wrap is built by PHP string interpolation before t() runs, so the integration name lands in the translated output as raw HTML. A rogue admin could potentially snoop on login submissions.The Concrete CMS security team thanks Yonatan Drori (Tenzai) for reporting this issue.

🎯 Affected products1

  • composer/concrete5/concrete5:< 9.5.1

🔗 References (3)