Medium severity · published Sep 8, 2025
CVE-2019-25225
`sanitize-html` prior to version 2.0.0-beta is vulnerable to Cross-site Scripting (XSS)
6.1
CVSS
0.3%
EPSS
No
On KEV
Description
`sanitize-html` prior to version 2.0.0-beta is vulnerable to Cross-site Scripting (XSS). The `sanitizeHtml()` function in `index.js` does not sanitize content when using the custom `transformTags` option, which is intended to convert attribute values into text. As a result, malicious input can be transformed into executable code.
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)0.3% · higher than 19% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SA
Sanitize-html · Apostrophecms
before 2.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-25225
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-25225
Exploit
https://github.com/Checkmarx/Vulnerabilities-Proofs-of-Concept/tree/main/2019/CVE-2019-25225
Patch
https://github.com/apostrophecms/sanitize-html/commit/712cb6895825c8bb6ede71a16b42bade42abcaf3
Issue Tracking
https://github.com/apostrophecms/sanitize-html/issues/293
Issue Tracking
https://github.com/apostrophecms/sanitize-html/pull/156
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