All vulnerabilities
CVE-2026-103904

Stored XSS Vulnerability in JTL-Shop

JTL-Software GmbH JTL-Shop
Open in ThreatlineRecord JSON
CVSS
8.6High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.40%Chance of exploitation activity in the next 30 days, higher than 33% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in5.6.5Also 5.7.5, 5.8.2CVE List
Published14 Oct 2026Updated 14 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

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.

Text from CVE List

Affected versions 3

  • JTL-Shopaffected: 5.4.0 before 5.6.5CVE List
  • JTL-Shopaffected: 5.7.0 before 5.7.5CVE List
  • JTL-Shopaffected: 5.8.0 before 5.8.2CVE List

References 1