GHSA-ccrp-c664-8p4j
Cross-Site Scripting in markdown-to-jsx
Versions of markdown-to-jsx prior to 6.11.4 are vulnerable to Cross-Site Scripting. Due to insufficient input sanitization the package may render output containing malicious JavaScript. This vulnerability can be exploited through input of links containing data or VBScript URIs and a base64-encoded payload.
Recommendation
Upgrade to version 6.11.4 or later.
What each source reports
GitHub AdvisoriesNo score
Cross-Site Scripting in markdown-to-jsx
Versions of markdown-to-jsx prior to 6.11.4 are vulnerable to Cross-Site Scripting. Due to insufficient input sanitization the package may render output containing malicious JavaScript. This vulnerability can be exploited through input of links containing data or VBScript URIs and a base64-encoded payload.
Recommendation
Upgrade to version 6.11.4 or later.
- Record
GHSA-ccrp-c664-8p4j- Weakness
- CWE-79
- Updated
- 2026-11-02
OSVNo score
Cross-Site Scripting in markdown-to-jsx
Versions of markdown-to-jsx prior to 6.11.4 are vulnerable to Cross-Site Scripting. Due to insufficient input sanitization the package may render output containing malicious JavaScript. This vulnerability can be exploited through input of links containing data or VBScript URIs and a base64-encoded payload.
Recommendation
Upgrade to version 6.11.4 or later.
- Record
GHSA-ccrp-c664-8p4j- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
markdown-to-jsxnpm | before 6.11.4 | 6.11.4 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-ccrp-c664-8p4j is a vulnerability with no CVSS score yet in markdown-to-jsx, published September 3, 2020. No source lists public exploit code. Fixed in markdown-to-jsx 6.11.4.