CVE-2026-3244

MEDIUM EPSS 9.4%
Published Mar 4, 20263mo ago · Modified Jun 17, 20261w ago
4.8 CVSS 4.0
Medium
Find Similar
Published Mar 4, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

Description

In Concrete CMS below version 9.4.8, A stored cross-site scripting (XSS) vulnerability exists in the search block where page names and content are rendered without proper HTML encoding in search results. This allows authenticated, rogue administrators to inject malicious JavaScript through page names that executes when users search for and view those pages in search results. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 4.8 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks zolpak for reporting

CVSS Details

Base Score
4.8
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/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
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction P
Scope X

Threat Intelligence

EPSS Exploit Probability
9.4% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
concretecmsconcrete_cms* <9.4.8

References 2

  • documentation.concretecms.org https://documentation.concretecms.org/9-x/developers/introduction/version-history/948-release-notes
    PatchRelease NotesVendor Advisory
  • github.com https://github.com/concretecms/concretecms/pull/12826
    ExploitIssue TrackingVendor Advisory

Remediation

  • documentation.concretecms.org https://documentation.concretecms.org/9-x/developers/introduction/version-history/948-release-notes
    PatchRelease NotesVendor Advisory