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CVE-2025-26791: DOMPurify before 3.2.4 has an incorrect template literal regular expression, sometimes leading to mutation cross-site scripting (mXSS).
4.5
CVSS
Description
DOMPurify before 3.2.4 has an incorrect template literal regular expression, sometimes leading to mutation cross-site scripting (mXSS).
Classification
CVE ID: CVE-2025-26791
CVSS Base Severity: MEDIUM
CVSS Base Score: 4.5
CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Affected Products
Vendor: Cure53
Product: DOMPurify
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.05% (probability of being exploited)
EPSS Percentile: 18.4% (scored less or equal to compared to others)
EPSS Date: 2025-03-15 (when was this score calculated)
References
https://github.com/cure53/DOMPurify/releases/tag/3.2.4https://github.com/cure53/DOMPurify/commit/d18ffcb554e0001748865da03ac75dd7829f0f02
https://nsysean.github.io/posts/dompurify-323-bypass/
https://ensy.zip/posts/dompurify-323-bypass/