CVE-2026-56383

MEDIUM

Craft CMS - Stored XSS in Table Field via Row Heading Column Type

Title source: cna
STIX 2.1

Description

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.

References (3)

Core 3
Core References
Vendor Advisory vendor-advisory
GHSA Advisory GHSA-6j87-m5qx-9fqp
https://github.com/craftcms/cms/security/advisories/GHSA-6j87-m5qx-9fqp
Third Party Advisory third-party-advisory
VulnCheck Advisory: Craft CMS - Stored XSS in Table Field via Row Heading Column Type
https://www.vulncheck.com/advisories/craft-cms-stored-xss-in-table-field-via-row-heading-column-type

Scores

CVSS v3 4.8
EPSS 0.0018
EPSS Percentile 7.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-79
Status published
Products (4)
craftcms/cms 4.16.19
craftcms/cms 4.5.0-beta.1 - 4.16.19
craftcms/cms 5.0.0-RC1 - 5.8.23
craftcms/cms 5.8.23
Published Jun 21, 2026
Tracked Since Jun 21, 2026