CVE-2026-33673
March 26, 2026
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.
Affected Packages
prestashop/prestashop (PHP):
Affected version(s) >=dev-alpha-v9 <8.2.5Fix Suggestion:
Update to version 8.2.5prestashop/prestashop (PHP):
Affected version(s) >=9.0.0-alpha.1 <9.1.0Fix Suggestion:
Update to version 9.1.0prestashop/prestashop (PHP):
Affected version(s) >=9.0.0-alpha.1 <9.1.0Fix Suggestion:
Update to version 9.1.0prestashop/prestashop (PHP):
Affected version(s) >=dev-alpha-v9 <8.2.5Fix Suggestion:
Update to version 8.2.5prestashop/prestashop (PHP):
Affected version(s) >=dev-alpha-v9 <8.2.5Fix Suggestion:
Update to version 8.2.5prestashop/prestashop (PHP):
Affected version(s) >=dev-alpha-v9 <8.2.5Fix Suggestion:
Update to version 8.2.5prestashop/prestashop (PHP):
Affected version(s) >=9.0.0-alpha.1 <9.1.0Fix Suggestion:
Update to version 9.1.0Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
7.6
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS
Base Score:
0.04
