CVE-2026-103904
Stored XSS Vulnerability in JTL-Shop
CVSS Score
9.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-79 |
| Vendor | jtl-software gmbh |
| Product | jtl-shop |
| Published | Oct 14, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
JTL-Software GmbH / JTL-Shop
5.4.0 < 5.6.5 5.7.0 < 5.7.5 5.8.0 < 5.8.2
References
Credits
🔍 Lionel Machire (Metzler GmbH) and Lucas Nill