Vulnerability identifier: #VU88801

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-21501

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
sanitize-html
Web applications / Modules and components for CMS

Vendor: ApostropheCMS

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application when used on the backend and with the style attribute allowed. A remote attacker can enumerate files on the system, including project dependencies.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

sanitize-html: 1.5.2 - 2.11.0

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External links
http://security.snyk.io/vuln/SNYK-JS-SANITIZEHTML-6256334
http://gist.github.com/Slonser/8b4d061abe6ee1b2e10c7242987674cf
http://github.com/apostrophecms/sanitize-html/pull/650
http://github.com/apostrophecms/apostrophe/discussions/4436
http://github.com/apostrophecms/sanitize-html/commit/c5dbdf77fe8b836d3bf4554ea39edb45281ec0b4
http://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-6276557

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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.