CVE-2026-3244

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 v3 4.8 MEDIUM

4.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.7 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://documentation.concretecms.org/9-x/developers/introduction/version-history/948-release-notes	Release Notes Patch Vendor Advisory
https://github.com/concretecms/concretecms/pull/12826	Exploit Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:*

History

04 Mar 2026, 21:37

Type	Values Removed	Values Added
References	~~() https://documentation.concretecms.org/9-x/developers/introduction/version-history/948-release-notes -~~	() https://documentation.concretecms.org/9-x/developers/introduction/version-history/948-release-notes - Release Notes, Patch, Vendor Advisory
References	~~() https://github.com/concretecms/concretecms/pull/12826 -~~	() https://github.com/concretecms/concretecms/pull/12826 - Exploit, Issue Tracking, Vendor Advisory
First Time		Concretecms concrete Cms Concretecms
CPE		cpe:2.3:a:concretecms:concrete_cms::::::::
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.8

04 Mar 2026, 02:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-04 02:15

Updated : 2026-03-04 21:37

NVD link : CVE-2026-3244

Mitre link : CVE-2026-3244

CVE.ORG link : CVE-2026-3244

JSON object : View

Products Affected

concretecms

concrete_cms

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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