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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.

PUBLISHED Reserved 2026-05-05 | Published 2026-05-14 | Updated 2026-05-15 | Assigner GitHub_M




CRITICAL: 9.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Problem types

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

Product status

< 8.2.6
affected

>= 9.0.0-alpha.1, < 9.1.1
affected

References

github.com/...taShop/security/advisories/GHSA-w9f3-qc75-qgx9

cve.org (CVE-2026-44212)

nvd.nist.gov (CVE-2026-44212)

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