Vulnerability Intelligence Report
Tampering by prototype polution in DOMPurify
CVE-2024-45801
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.
No Active Exploit Signals
CVSS Base Score
7.3
HIGH
Exploitability:3.9
Impact Score:3.4
EPSS Probability:0.84%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-1333 ↗CWE-1333: Inefficient Regular Expression Complexity
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| cure53 | DOMPurify | < 2.5.4 (affected), >=3.0.0, < 3.1.3 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.844%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | GitHub, Inc. · Vendor · USA |
| Reserved | 2024-09-09T14:23:07 |
| Published | 2024-09-16T18:25:28 |
| Last Updated | 2024-09-16T20:04:47 |
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