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OpenAdvisories
Medium · 4.8 CVE-2026-56383 EUVD-2026-38177GHSA-5w9j-w5p8-r4p7GHSA-6j87-m5qx-9fqp

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

Published Jun 21, 2026 · Updated Nov 8, 2026 · Assigned by VulnCheck

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.

Affected products

VendorProductAffectedFixed
craftcms cms 4.5.0-beta.1 – < 4.16.19, 5.0.0-RC1 – < 5.8.23 4.16.19

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist craftcms/cms >= 4.5.0-beta.1, < 4.16.19 4.16.19 GHSA-6j87-m5qx-9fqp
Packagist craftcms/cms >= 5.0.0-RC1, < 5.8.23 5.8.23 GHSA-6j87-m5qx-9fqp

References