CVE-2024-45801

Tampering by prototype polution in DOMPurify

Severity Score

7.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

MITRE
RedHat

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.

A flaw was found in DOMPurify. This issue may allow an attacker to use specially-crafted HTML to bypass the depth checking or use Prototype Pollution to weaken the depth check, which can lead to cross site scripting (XSS) attacks.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

High

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-09-09 CVE Reserved
2024-09-16 CVE Published
2024-09-16 CVE Updated
2024-09-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-1333: Inefficient Regular Expression Complexity

CAPEC

References (5)

URL	Tag	Source
https://github.com/cure53/DOMPurify/security/advisories/GHSA-mmhx-hmjr-r674	X_refsource_confirm
https://github.com/cure53/DOMPurify/commit/1e520262bf4c66b5efda49e2316d6d1246ca7b21	X_refsource_misc
https://github.com/cure53/DOMPurify/commit/26e1d69ca7f769f5c558619d644d90dd8bf26ebc	X_refsource_misc

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2024-45801	2024-10-22
https://bugzilla.redhat.com/show_bug.cgi?id=2312631	2024-10-22

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cure53 Search vendor "Cure53"		DOMPurify Search vendor "Cure53" for product "DOMPurify"				< 2.5.4 Search vendor "Cure53" for product "DOMPurify" and version " < 2.5.4"		en		Affected
Cure53 Search vendor "Cure53"		DOMPurify Search vendor "Cure53" for product "DOMPurify"				>= 3.0.0 < 3.1.3 Search vendor "Cure53" for product "DOMPurify" and version " >= 3.0.0 < 3.1.3"		en		Affected