EUVD-2026-31357
GHSA-f73j-pm2c-rxvr
CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
1DescriptionNVD
Concrete CMS 9.5.0 and below is vulnerable to Reflected XSS in Legacy Pagination via HTML attribute injection. Concrete\Core\Legacy\Pagination builds pagination links by raw-interpolating its $URL field into href="" (<a href="{$linkURL}" …>). Any authenticated admin or report viewer with access to /dashboard/reports/forms/legacy who clicks the crafted URL fires the payload in their session. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 6.0 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Yonatan Drori (Tenzai) for reporting
AnalysisAI
Reflected XSS in Concrete CMS 9.5.0 and below allows a remote unauthenticated attacker to inject and execute arbitrary JavaScript in the browser of an authenticated admin or report viewer who clicks a crafted URL targeting the legacy form reports dashboard. The vulnerable component, Concrete\Core\Legacy\Pagination, raw-interpolates a user-controlled URL value directly into an HTML href attribute, enabling attribute injection per CWE-83. …
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External POC / Exploit Code
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