Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1maDdyLTk5NnEtZ3ZjcM4AAy9g

Possible XSS injection through Validate::isCleanHTML method

Impact

ValidateCore::isCleanHTML() method of Prestashop misses hijickable events which can lead to XSS injection, allowed by the presence of pre-setup @keyframes methods.

This XSS which hijacks HTML attributes will be triggered without any interaction of the visitor/administrator which makes it as dangerous as a trivial XSS.

Contrary to most XSS which target HTML attributes and which are triggered without user interaction (such as onload / onerror which suffer from a very limited scope), this one can hijack every HTML element, which increases the danger due to a complete HTML elements scope.

Patches

The patch will be on PS 8.0.4 and PS 1.7.8.9

References

Permalink: https://github.com/advisories/GHSA-fh7r-996q-gvcp
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1maDdyLTk5NnEtZ3ZjcM4AAy9g
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 1 year ago
Updated: about 1 year ago

CVSS Score: 8.1
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

EPSS Percentage: 0.00289
EPSS Percentile: 0.68518

Identifiers: GHSA-fh7r-996q-gvcp, CVE-2023-30838
References:

• https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-fh7r-996q-gvcp
• https://github.com/PrestaShop/PrestaShop/releases/tag/1.7.8.9
• https://github.com/PrestaShop/PrestaShop/releases/tag/8.0.4
• https://nvd.nist.gov/vuln/detail/CVE-2023-30838
• https://github.com/PrestaShop/PrestaShop/commit/46408ae4b02f3b8b1bb6e9dc63af5bcd858abd9c
• https://github.com/PrestaShop/PrestaShop/commit/dc682192df0e4b0d656a8e645b29ca1b9dbe3693
• https://github.com/advisories/GHSA-fh7r-996q-gvcp

Repository: https://github.com/PrestaShop/PrestaShop
Blast Radius: 2.4

Affected Packages