PrestaShop has a stored XSS executable in customer service view
Date: 2026-05
Affected: composer/prestashop/prestashop, composer/prestashop/prestashop
Attack vector: xss
Category: vulnerability-disclosure
Severity: Critical
CVE: CVE-2026-44212
CWE: CWE-79
CVSS: 9.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N)

### Impact This is a **stored Cross-site Scripting (XSS)** vulnerability in the PrestaShop back-office Customer Service view. An unauthenticated attacker can submit the public Contact Us form with a malicious email address. The payload is stored in the database and executed when a back-office employee opens the affected customer thread, enabling session hijacking and full back-office takeover. ### Patches Patched in PrestaShop 8.2.6 and 9.1.1. ### Workarounds None. ### Resources - Reported by Savio at Doyensec (`anthropic@doyensec.com`) in collaboration with Anthropic Research.


Mitigations:

Architectural layers (MAESTRO):