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CVE-2024-45801

Tampering by prototype polution in DOMPurify

Published: Sep 16, 2024Updated: Sep 22, 2025 Sources: CVE List NVD GHSA BDUCWE-1333
NVD MITRE
7.3CVSSHIGH
EPSS Score
0.9%
Top 46.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-1333CWE-1321

Affected Products

dompurifycure53
Library
OSS Libraries / generic-library
dompurifynpmOSS Libraries
Red Hat Process AutomationRed Hat Inc.
On-premDev Tool
DevTools & CI / build-test-tools
Red Hat 3scale API Management PlatformRed Hat Inc.
SaaSSaaS Service
Cloud & SaaS / api-gateway
Red Hat Advanced Cluster Management for KubernetesRed Hat Inc.
On-prem
Cloud & SaaS / container-orchestration
cure53OSS Librariesaka dompurify
npmpackage-ecosystemOSS Libraries
red hat inc.commercialUSOperating Systemsaka red hat
and 18 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Execution
Impact
View detailed technique mapping

References

https://github.com/cure53/DOMPurify/commit/1e520262bf4c66b5efda49e2316d6d1246ca7b21
github.com
https://github.com/cure53/DOMPurify/commit/26e1d69ca7f769f5c558619d644d90dd8bf26ebc
github.com
https://github.com/cure53/DOMPurify/security/advisories/GHSA-mmhx-hmjr-r674
github.com
and 12 more references View all →

Timeline

Published
Sep 16, 2024
Last Updated
Sep 22, 2025

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