JTL Software vulnerabilities

🔔 Create alert RSS

Published CVEs affecting JTL Software products: 3 record(s), with severity, exploitation and fixes.

Exploited only (KEV) →

CVE-2026-103905 High · 7.5 CWE-306 Oct 14, 2026

Unauthenticated Plugin Safe Mode Toggle Vulnerability in JTL-Shop

The authentication middleware of the JTL-Shop administration backend processes the plugin safe mode toggle on the admin logout route before checking whether the requesting user is authenticated. An unauthenticated remote attacker can therefore switch the shop's plugin safe mode on and off, which deactivates all installed plugins and their functionality, such as payment and shipping integrations, resulting in a shop-wide denial of service. The attack requires a single request and can be automated against many installations.

CVE-2026-103904 Critical · 9.3 CWE-79 Oct 14, 2026

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-2026-54390 Critical · 9.8 CWE-1336 Jun 18, 2026

JTL Shop < 5.7.2 Server-Side Template Injection via Smarty Renderer

JTL Shop versions 5.2.0 through 5.7.1 contains a server-side template injection vulnerability that allows unauthenticated attackers to inject malicious template syntax due to unsanitized user-supplied input passed to the Smarty template engine. Attackers can exploit this flaw to read sensitive server-side values such as database credentials and encryption keys, and on versions 5.4.0 through 5.7.1, leverage registered Smarty modifiers including unserialize and file_get_contents to write a webshell to the web root and execute arbitrary commands as the web server user.