Medium severity · published Feb 14, 2025
CVE-2025-26791
DOMPurify before 3.2.4 has an incorrect template literal regular expression, sometimes leading to mutation cross-site scripting (mXSS)
6.1
CVSS
0.6%
EPSS
No
On KEV
Description
DOMPurify before 3.2.4 has an incorrect template literal regular expression, sometimes leading to mutation cross-site scripting (mXSS).
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DO
DOMPurify · Cure53
before 3.2.4 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-26791
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-26791
Exploit
https://ensy.zip/posts/dompurify-323-bypass/
Patch
https://github.com/cure53/DOMPurify/commit/d18ffcb554e0001748865da03ac75dd7829f0f02
Release Notes
https://github.com/cure53/DOMPurify/releases/tag/3.2.4
Exploit
https://nsysean.github.io/posts/dompurify-323-bypass/
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