GHSA-w9f3-qc75-qgx9CriticalCVSS 9.3

PrestaShop has a stored XSS executable in customer service view

Published
May 8, 2026
Last Modified
May 8, 2026

🔗 CVE IDs covered (1)

📋 Description

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 ([email protected]) in collaboration with Anthropic Research.

🎯 Affected products2

  • composer/prestashop/prestashop:< 8.2.6
  • composer/prestashop/prestashop:>= 9.0.0, < 9.1.1

🔗 References (2)