sanitize-html is vulnerable to XSS through incomprehensive sanitization
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | sanitize-html | < 2.0.0-beta | 2.0.0-beta |
References
- https://nvd.nist.gov/vuln/detail/CVE-2019-25225
- https://github.com/apostrophecms/sanitize-html/issues/293
- https://github.com/apostrophecms/sanitize-html/pull/156
- https://github.com/apostrophecms/sanitize-html/commit/712cb6895825c8bb6ede71a16b42bade42abcaf3
- https://github.com/Checkmarx/Vulnerabilities-Proofs-of-Concept/tree/main/2019/CVE-2019-25225
- https://github.com/apostrophecms/sanitize-html
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- npm
- Package
sanitize-html- Disclosed
- 08.09.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-qhxp-v273-g94h - CC BY 4.0
Vulnerability history: sanitize-html
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 15
- First → latest
- 11.2018 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 1
- Medium 12
- Low 1
Disclosures per year
- 2018: 2
- 2019: 0
- 2020: 1
- 2021: 2
- 2022: 1
- 2023: 0
- 2024: 1
- 2025: 1
- 2026: 7
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sanitize-html is vulnerable to XSS through incomprehensive sanitization this entry
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