#VU83987 Stored cross-site scripting in magento-lts

Vulnerability identifier: #VU83987

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: N/A

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
magento-lts
Web applications / Modules and components for CMS

Vendor: OPENMAGE

Description

The disclosed vulnerability allows a remote user to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data within the WYSIWYG editor shipped with an old version of TinyMCE. A remote user can permanently inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

magento-lts: 20.0.0 - 20.0.20, 20.1.0 - 20.1.1

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External links
https://github.com/OpenMage/magento-lts/security/advisories/GHSA-9j5w-2cqc-cwj9

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.