Cross-Site Scripting in markdown-it-katex
All versions of markdown-it-katex are vulnerable to Cross-Site Scripting (XSS). The package fails to properly escape error messages, which may allow attackers to execute arbitrary JavaScript in a victim's browser by triggering an error.
Recommendation
No fix is currently available. Consider using an alternative package until a fix is made available.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | markdown-it-katex | >= 0.0.0 | no fix |
References
- Weakness (CWE)
CWE-79- Platform
- npm
- Package
markdown-it-katex- Disclosed
- 04.09.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-5ff8-jcf9-fw62 - CC BY 4.0
Vulnerability history: markdown-it-katex
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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