Medium severity4.8NVD Advisory· Published Jun 21, 2026· Updated Jun 23, 2026
CVE-2026-56383
CVE-2026-56383
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
craftcms/cmsPackagist | >= 4.5.0-beta.1, < 4.16.19 | 4.16.19 |
craftcms/cmsPackagist | >= 5.0.0-RC1, < 5.8.23 | 5.8.23 |
Affected products
2Patches
Vulnerability mechanics
References
8- github.com/advisories/GHSA-6j87-m5qx-9fqpghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-56383ghsaADVISORY
- craftcms.com/knowledge-base/securing-craftghsaWEB
- github.com/craftcms/cms/commit/7b372de262b8d9d2ce859f32780c3715719b6f5anvdWEB
- github.com/craftcms/cms/releases/tag/4.16.19ghsaWEB
- github.com/craftcms/cms/releases/tag/5.8.23ghsaWEB
- github.com/craftcms/cms/security/advisories/GHSA-6j87-m5qx-9fqpnvdWEB
- www.vulncheck.com/advisories/craft-cms-stored-xss-in-table-field-via-row-heading-column-typenvdWEB
News mentions
1- Craft CMS: Nine Vulnerabilities Including RCE and SSRF Disclosed in BatchVypr Intelligence · Jun 21, 2026