CVE-2026-56383
Published:June 21, 2026
Updated:June 29, 2026
Craft CMS contains a stored cross-site scripting (XSS) vulnerability in the editableTable.twig component when using the 'Row Heading' column type. The application fails to sanitize input within row heading default values, allowing an attacker with an administrator account (with allowAdminChanges enabled) to inject arbitrary JavaScript that executes when another user views a page containing the affected table field. Affected versions are >= 4.5.0-beta.1 through 4.16.18 and >= 5.0.0-RC1 through 5.8.22; fixed in 4.16.19 and 5.8.23.
Affected Packages
https://github.com/craftcms/cms.git (GITHUB):
Affected version(s) >=5.0.0-RC1 <5.8.23Fix Suggestion:
Update to version 5.8.23https://github.com/craftcms/cms.git (GITHUB):
Affected version(s) >=4.5.0-beta.1 <4.16.19Fix Suggestion:
Update to version 4.16.19craftcms/cms (PHP):
Affected version(s) >=5.0.0-RC1 <5.8.23Fix Suggestion:
Update to version 5.8.23craftcms/cms (PHP):
Affected version(s) >=4.5.0-beta.1 <4.16.19Fix Suggestion:
Update to version 4.16.19Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
4.6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
ACTIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS
Base Score:
0.18