Paper/Archive/CVE-2026-103904

CVE-2026-103904

JTL-Software GmbH JTL-Shop — Stored XSS Vulnerability in JTL-Shop

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
JTL-Shop5.4.0 – < 5.6.55.6.5CNA
JTL-Shop5.7.0 – < 5.7.55.7.5CNA
JTL-Shop5.8.0 – < 5.8.25.8.2CNA

Scores by source

ENISA (CNA)9.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
ENISA (CNA)8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

advisoryjtl-software.com/de/security/sicherheitsluecke-shop-xss