#VU99556 Prototype pollution in DOMPurify - CVE-2024-48910

Vulnerability identifier: #VU99556

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-48910

CWE-ID: CWE-1321

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
DOMPurify
Web applications / Modules and components for CMS

Vendor: Cure53

Description

The vulnerability allows a remote attacker to perform XSS attacks.

The vulnerability exists due to improper input validation. A remote attacker can pass specially crafted input to the application and perform prototype pollution, which can result in information disclosure or data manipulation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

DOMPurify: 2.0.0 - 2.4.1

---

External links
https://github.com/cure53/DOMPurify/security/advisories/GHSA-p3vf-v8qc-cwcr
https://github.com/cure53/DOMPurify/commit/d1dd0374caef2b4c56c3bd09fe1988c3479166dc

---

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.