CVE-2024-34716: prestashop XSS — Fix

Description

PrestaShop is an open source e-commerce web application. A cross-site scripting (XSS) vulnerability that only affects PrestaShops with customer-thread feature flag enabled is present starting from PrestaShop 8.1.0 and prior to PrestaShop 8.1.6. When the customer thread feature flag is enabled through the front-office contact form, a hacker can upload a malicious file containing an XSS that will be executed when an admin opens the attached file in back office. The script injected can access the session and the security token, which allows it to perform any authenticated action in the scope of the administrator's right. This vulnerability is patched in 8.1.6. A workaround is to disable the customer-thread feature-flag.

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CVSS v3.1 Score

9.6

CRITICAL

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

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
prestashop	prestashop	8.1.0 — 8.1.6

References

Advisories & Patches

https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-45vm-3j38-7p78 https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-45vm-3j38-7p78

Other References

https://github.com/PrestaShop/PrestaShop/releases/tag/8.1.6 https://github.com/PrestaShop/PrestaShop/releases/tag/8.1.6

Frequently Asked Questions

What is CVE-2024-34716? +

PrestaShop is an open source e-commerce web application. A cross-site scripting (XSS) vulnerability that only affects PrestaShops with customer-thread feature flag enabled is present starting from PrestaShop 8.1.0 and prior to PrestaShop 8.1.6. When the customer thread feature flag is enabled through the front-office contact form, a hacker can upload a malicious file containing an XSS that will be executed when an admin opens the attached file in back office. The script injected can access the session and the security token, which allows it to perform any authenticated action in the scope of the administrator's right. This vulnerability is patched in 8.1.6. A workaround is to disable the customer-thread feature-flag. It has a CVSS v3.1 base score of 9.6 (CRITICAL).

How severe is CVE-2024-34716? +

CVE-2024-34716 has a CVSS v3.1 score of 9.6 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-34716? +

CVE-2024-34716 affects products from prestashop, specifically: prestashop. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-34716? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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