CVE-2026-44212

PrestaShop: Stored XSS executable in customer service view

State: Published
Severity: 9.3 Critical
Published: May 14, 2026
Updated: May 15, 2026
Reserved: May 5, 2026

Description

PrestaShop is an open source e-commerce web application. Prior to 8.2.6 and 9.1.1, there 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. This vulnerability is fixed in 8.2.6 and 9.1.1.

Scores

CVSS	Score	Vector	Source
3.1	9.3 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N	GitHub_M

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
PrestaShopPrestaShop	< 8.2.6Affected >= 9.0.0-alpha.1, < 9.1.1Affected

References

https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-w9f3-qc75-qgx9

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