SB2026050489 - Cross-site scripting in PrestaShop

Description

This security bulletin contains information about 1 vulnerability.

1) Cross-site scripting (CVE-ID: N/A)

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

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to execute arbitrary script code in a back-office employee's browser.

The vulnerability exists due to cross-site scripting in the back-office customer service view when rendering a customer thread containing a malicious email address submitted through the public Contact Us form. A remote attacker can submit a specially crafted contact request to execute arbitrary script code in a back-office employee's browser.

User interaction is required when a back-office employee opens the affected customer thread.

Remediation

Install update from vendor's website.

References

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