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CVE-2026-8134

HIGH · CVSS 7.2 EPSS %0.74 Public Exploit

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-05-21T21:16:32.837 · Çekilme zamanı: 2026-06-20T12:03:32.851325+00:00

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Public Exploit Sinyali

Bu CVE için açıklama veya referanslarda public exploit / PoC / GitHub / Metasploit sinyali tespit edildi.

Tespit Edilen Sinyaller
exploit remote code execution code execution

Not: Bu bağlantılar yalnızca güvenlik araştırması ve doğrulama amacıyla listelenmiştir.

CVE
CVE-2026-8134
Severity
HIGH
CVSS
7.2
EPSS
%0.74

Orijinal NVD Açıklaması

Concrete CMS 9.5.0 and below fails to sanitize path traversal sequences in the ptComposerFormLayoutSetControlCustomTemplate field when saving page type composer form layouts. An authenticated rogue administrator with composer form editing rights can exploit this to include arbitrary readable files on the server. Combined with the file uploader's extension-only validation (which permits PHP code in files saved with image extensions like .png), this can result in authenticated remote code execution. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 9.4 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H   Thanks Yonatan Drori (Tenzai) for reporting.