GHSA-9j5w-2cqc-cwj9 – openmage/magento-lts

Package

Manager: composer
Name: openmage/magento-lts
Vulnerable Version: >=0 <20.2.0

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:L

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N

EPSS: N/A pctlN/A

Details

Magento LTS vulnerable to Stored XSS via TinyMCE WYSIWYG Editor From HackerOne report [#1948040](https://hackerone.com/reports/1948040) by Halit AKAYDIN (hltakydn) ### Impact _What kind of vulnerability is it? Who is impacted?_ The TinyMCE WYSIWYG editor fails to filter scripts when rendering the HTML in specially crafted HTML tags. ### Patches _Has the problem been patched? What versions should users upgrade to?_ This vulnerability was fixed in version 20.2.0 by upgrading TinyMCE to a recent version in https://github.com/OpenMage/magento-lts/pull/3220 ### Workarounds _Is there a way for users to fix or remediate the vulnerability without upgrading?_ The WYSIWYG editor features could be disabled in the configuration. Possibly some WAF appliances would filter this attack. ### References _Are there any links users can visit to find out more?_ The attack is simply an exploit of the "onmouseover" attribute of an `img` element as described on [OWASP XSS Filter Evasion](https://cheatsheetseries.owasp.org/cheatsheets/XSS_Filter_Evasion_Cheat_Sheet.html)

Metadata

Created: 2023-12-08T15:15:14Z
Modified: 2023-12-08T15:15:14Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/12/GHSA-9j5w-2cqc-cwj9/GHSA-9j5w-2cqc-cwj9.json
CWE IDs: ["CWE-79"]
Alternative ID: N/A
Finding: F425
Auto approve: 1