Pimcore through 2026.3.1 Stored XSS via ExternalImage Field Version Preview
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.
CVE-2026-109392
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-109392
Pimcore
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/pimcore/pimcore",
"vendor": "Pimcore",
"product": "Pimcore",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "custom",
"lessThanOrEqual": "2026.3.1"
}
],
"packageURL": "pkg:composer/pimcore/pimcore",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-109392
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #20595 · Revision 1
- Added to Heist Feed
- Publisher date