Cross-Site Scripting in sanitize-html
Affected versions of sanitize-html are vulnerable to cross-site scripting.
Proof of Concept:
<IMG SRC= onmouseover="alert('XSS');">
produces the following:
<img src="onmouseover="alert('XSS');"" />
This is definitely invalid HTML, but would suggest that it's being interpreted incorrectly by the parser.
Recommendation
Update to version 1.2.3 or later.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | sanitize-html | < 1.2.3 | 1.2.3 |
References
- CVSS vector
CVSS:3.0/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
- 09.11.2018
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-wg96-3933-j2w5 - 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
-
Cross-Site Scripting in sanitize-html this entry
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