En resumen
- CVE-2026-8203 es una vulnerabilidad MEDIO (CVSS 5.4) que afecta a concrete5/concrete5, concrete cms (concretecms).
- Probabilidad de explotación en los próximos 30 días (EPSS): 0.12%, mayor que el 1.9% de las vulnerabilidades.
- Solución: actualizar a 9.5.1 o posterior.
Description
Concrete CMS 9.5.0 and below has Stored XSS on the height parameter. The controller does not validate or sanitize $height. Any user with editor privileges can inject malicious JavaScript that executes in the context of any visitor's browser, potentially leading to session hijacking, credential theft, or other malicious actions.
NVD description
Concrete CMS 9.5.0 and below has Stored XSS on the height parameter. The controller does not validate or sanitize $height. Any user with editor privileges can inject malicious JavaScript that executes in the context of any visitor's browser, potentially leading to session hijacking, credential theft, or other malicious actions. 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:H/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. Thanks Alfin Joseph for reporting.
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