#VU89684 Cross-site scripting in Trix - CVE-2024-34341

Vulnerability identifier: #VU89684

Vulnerability risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-34341

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Trix
Web applications / Other software

Vendor: Basecamp

Description

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

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Trix: 0.4.0 - 2.1.0

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External links
https://github.com/basecamp/trix/security/advisories/GHSA-qjqp-xr96-cj99
https://github.com/basecamp/trix/pull/1147
https://github.com/basecamp/trix/pull/1149
https://github.com/basecamp/trix/commit/1a5c68a14d48421fc368e30026f4a7918028b7ad
https://github.com/basecamp/trix/commit/841ff19b53f349915100bca8fcb488214ff93554
https://github.com/basecamp/trix/releases/tag/v2.1.1

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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