Vulnerability 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 <strong>...</strong> 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 gave this vulnerability a CVSS v.4.0 score of 7.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Thanks Yonatan Drori (Tenzai) for reporting.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-8197?
CVE-2026-8197 is a documented vulnerability. 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 hel...
How severe is CVE-2026-8197?
CVSS scoring is not yet available for CVE-2026-8197. Check NVD for updates.
Is there a patch for CVE-2026-8197?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.