MEDIUM 5.1 NVD
CVE-2026-109392
Pimcore through 2026.3.1 contains a stored cross-site scripting vulnerability that allows authenticated backend users to inject scripts by storing unescaped URL
Pimcore through 2026.3.1 contains a stored cross-site scripting vulnerability that allows authenticated backend users to inject scripts by storing unescaped URLs in ExternalImage fields. Attackers with data object edit permission can store attribute-breaking payloads that execute JavaScript in the admin origin when other users open version preview or diff views.
References
- https://github.com/pimcore/admin-ui-classic-bundle/blob/2.3/templates/admin/data_object/da
- https://github.com/pimcore/pimcore
- https://github.com/pimcore/pimcore/blob/v2026.3.1/models/DataObject/ClassDefinition/Data/E
- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/rJCbgCKjMe
- https://www.vulncheck.com/advisories/pimcore-through-2026.3.1-stored-xss-via-externalimage
This medium severity vulnerability with a CVSS score of 5.1 was published on 2026-10-12 via NVD.
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