CVE-2026-3244
Published:March 04, 2026
Updated:June 27, 2026
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
Affected Packages
https://github.com/concretecms/concretecms.git (GITHUB):
Affected version(s) >=9.4.0RC1 <9.4.8Fix Suggestion:
Update to version 9.4.8https://github.com/concretecms/concretecms.git (GITHUB):
Affected version(s) =9.5.0RC1 <9.5.0RC2Fix Suggestion:
Update to version 9.5.0RC2concrete5/concrete5 (PHP):
Affected version(s) >=dev-allow-install-php-8.2 <9.4.8Fix Suggestion:
Update to version 9.4.8Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
4.8
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
2.4
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS
Base Score:
0.19