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Description

PrestaShop is an open source e-commerce web application. Versions prior to 8.2.5 and 9.1.0 are vulnerable to stored Cross-Site Scripting (stored XSS) vulnerabilities in the BO. An attacker who can inject data into the database, via limited back-office access or a previously existing vulnerability, can exploit unprotected variables in back-office templates. Versions 8.2.5 and 9.1.0 contain a fix. No known workarounds are available.

PUBLISHED Reserved 2026-03-23 | Published 2026-03-26 | Updated 2026-03-27 | Assigner GitHub_M




HIGH: 7.7CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

Problem types

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

Product status

>= 9.0.0-alpha.1, < 9.1.0
affected

< 8.2.5
affected

References

github.com/...taShop/security/advisories/GHSA-35pf-37c6-jxjv

github.com/PrestaShop/PrestaShop/releases/tag/8.2.5

github.com/PrestaShop/PrestaShop/releases/tag/9.1.0

cve.org (CVE-2026-33673)

nvd.nist.gov (CVE-2026-33673)

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