Home/CVE/DOMPurify before 3.2.4 has an incorrect template literal regular expression, sometimes leading to mutation cross-site sc
CVE

CVE-2025-26791

DOMPurify before 3.2.4 has an incorrect template literal regular expression, sometimes leading to mutation cross-site sc

DOMPurify before 3.2.4 has an incorrect template literal regular expression, sometimes leading to mutation cross-site scripting (mXSS).

MEDIUM · CVSS 4.5 EPSS 0.00108
Schedule remediation
  • Public exploit or PoC is available
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
▤

Affected Products & Versions

1
cure53 dompurify< 3.2.4
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
npm dompurify MODERATE fixed in 3.2.4
⚠

Public Exploits & PoCs

2
pocensy.zip · dompurify-323-bypassensy.zip
pocnsysean.github.io · dompurify-323-bypassnsysean.github.io
▣

Scoring & Timeline

4.5
MEDIUM · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Feb 2025 · 09:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

12
rhsaRHSA-2026:2737Moderate
rhsaRHSA-2026:2769Moderate
rhsaRHSA-2026:3406Important
rhsaRHSA-2025:7626Important
suse-csafopenSUSE-SU-2025:14921-1
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/cure53/DOMPurify/commit/d18ffcb554e0001748865da03ac75dd7829f0f02Patch
https://github.com/cure53/DOMPurify/releases/tag/3.2.4Release Notes
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