CVE-2025-26791

MEDIUM
2025-02-14 [email protected]
4.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

4
Analysis Generated
Mar 28, 2026 - 18:26 vuln.today
Patch Released
Mar 28, 2026 - 18:26 nvd
Patch available
PoC Detected
Oct 07, 2025 - 20:56 vuln.today
Public exploit code
CVE Published
Feb 14, 2025 - 09:15 nvd
MEDIUM 4.5

Tags

XSS Dompurify Redhat Suse

Description

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

Analysis

DOMPurify before 3.2.4 has an incorrect template literal regular expression, sometimes leading to mutation cross-site scripting (mXSS). Rated medium severity (CVSS 4.5), this vulnerability is no authentication required. Public exploit code available.

Technical Context

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. DOMPurify before 3.2.4 has an incorrect template literal regular expression, sometimes leading to mutation cross-site scripting (mXSS). Affected products include: Cure53 Dompurify. Version information: before 3.2.4.

Affected Products

Cure53 Dompurify.

Remediation

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.

Priority Score

43
Low Medium High Critical
KEV: 0
EPSS: +0.2
CVSS: +22
POC: +20

Vendor Status

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CVE-2025-26791 vulnerability details – vuln.today
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