Stored XSS Vulnerability in JTL-Shop
The public consent endpoint of JTL-Shop accepts arbitrary consent names from unauthenticated visitors without validating them against the configured consent items. These names are stored in the consent statistics and rendered without output encoding in the administration backend. An unauthenticated remote attacker can thereby inject script code that is executed in the browser session of an administrator viewing the consent statistics page, allowing actions to be performed with the administrator's privileges.
CVE-2026-103904
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-2026-103904
JTL-Shop
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.
[
{
"vendor": "JTL-Software GmbH",
"product": "JTL-Shop",
"versions": [
{
"status": "affected",
"version": "5.4.0",
"lessThan": "5.6.5",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.7.0",
"lessThan": "5.7.5",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.8.0",
"lessThan": "5.8.2",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-103904
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #21953 · Revision 1
- Added to Heist Feed
- Publisher date