En resumen
- CVE-2026-7890 es una vulnerabilidad MEDIO (CVSS 6.4) que afecta a concrete5/concrete5, concrete cms (concretecms).
- Probabilidad de explotación en los próximos 30 días (EPSS): 0.15%, mayor que el 4.4% de las vulnerabilidades.
- Solución: actualizar a 9.5.1 o posterior.
Description
In Concrete CMS 9.5.0 and below, the RSS Displayer block accepts a feed URL from any page editor and fetches it server-side without validation enabling redirect-to-internal bypasses.
NVD description
In Concrete CMS 9.5.0 and below, the RSS Displayer block accepts a feed URL from any page editor and fetches it server-side without validation enabling redirect-to-internal bypasses. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.1 with a vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:L/VA:N/SC:L/SI:N/SA:N.
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