CVE-2026-54390

CVE-2026-54390 — JTL Shop Smarty SSTI Mass Exploit Pre-Auth Contact Form → Email Subject → fetch'string:' → RCE Overview CVE-2026-54390 is a critical CVSS 9.8 unauthenticated Server-Side Template Injection in JTL Shop 5.2.0–5.7.1. The SmartyRenderer::renderTemplate method passes email subject lin...

CVE-2026-103905

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...

CVE-2026-103904

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 unauthenticat...

CVE-2026-103905 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...

CVE-2026-103905 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...

EUVD-2026-100979

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...

CVE-2026-103905

The JTL-Shop administration backend is vulnerable to an unauthenticated plugin safe mode toggle due to an authentication middleware flaw. The system processes the plugin safe mode toggle on the admin logout route before verifying the user's authentication status. An unauthenticated remote attacke...

CVE-2026-103904 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 unauthenticat...

CVE-2026-103904

JTL-Shop is vulnerable to a Stored XSS vulnerability because its public consent endpoint accepts arbitrary consent names from unauthenticated visitors without proper validation. These names are stored in consent statistics and rendered in the administration backend without output encoding. An una...

CVE-2026-103904 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 unauthenticat...

EUVD-2026-100973

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 unauthenticat...

PT-2026-113958

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...

PT-2026-113957

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 unauthenticat...

CVE-2026-103904: Improper Neutralization of Input During Web Page Generation

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 unauthenticat...

CVE-2026-103905: Missing Authentication for Critical Function

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...

JTL Shop CVE-2026-54390 Smarty SSTI Detect

Detects JTL Shop 5.2.0 through 5.7.1 vulnerable to CVE-2026-54390: contact form fields reach SmartyRenderer email subjects via fetch'string:' . $subject. Versions 5.4.0+ allow full RCE via registered Smarty modifiers; 5.2.x–5.3.x allow credential theft. !/usr/bin/env python3 -- coding: utf-8 --...

JTL Shop Smarty SSTI RCE (CVE-2026-54390)

Exploits CVE-2026-54390 in JTL Shop 5.4.0–5.7.1: unauthenticated contact form input reaches SmartyRenderer::fetch'string:' . $subject. Serves the configured framework PHP payload locally, injects a Smarty system write primitive via vorname, waits for async email rendering, then triggers reversetc...

CVE-2026-54390

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...

CVE-2026-54390 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...

EUVD-2026-37925

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...