CVE-2024-45801 Tampering by prototype polution in DOMPurify

2024-09-1618:25:28

CWE-1333

GitHub_M

www.cve.org

cve-2024-45801

dompurify

xss sanitizer

prototype pollution

upgrade

CVSS3

7.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

EPSS

Percentile

16.3%

JSON

DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. It has been discovered that malicious HTML using special nesting techniques can bypass the depth checking added to DOMPurify in recent releases. It was also possible to use Prototype Pollution to weaken the depth check. This renders dompurify unable to avoid cross site scripting (XSS) attacks. This issue has been addressed in versions 2.5.4 and 3.1.3 of DOMPurify. All users are advised to upgrade. There are no known workarounds for this vulnerability.

CNA Affected

[
  {
    "vendor": "cure53",
    "product": "DOMPurify",
    "versions": [
      {
        "version": "< 2.5.4",
        "status": "affected"
      },
      {
        "version": ">=3.0.0, < 3.1.3",
        "status": "affected"
      }
    ]
  }
]