# CVE-2024-21535: node-markdown-to-jsx: Versions of the package markdown-to-jsx before 7.4.0 are vulnerable to Cross-site Scripting (XSS) via the src propert...

CVE-2024-21535 is fixed in node-markdown-to-jsx on 1 platform, first by DEBIAN-CVE-2024-21535, released October 15, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-21535
- Priority: Routine
- CVSS: 6.1 (medium)
- EPSS: 0.0052
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 15, 2024

## Description

Versions of the package markdown-to-jsx before 7.4.0 are vulnerable to Cross-site Scripting (XSS) via the src property due to improper input sanitization. An attacker can execute arbitrary code by injecting a malicious iframe element in the markdown.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | node-markdown-to-jsx Debian 13.5 (trixie) | 7.2.0+dfsg-3 | [DEBIAN-CVE-2024-21535](https://patchblox.com/security/data/fix/linux/debian-cve-2024-21535.md) | Oct 15, 2024 |
| Linux | node-markdown-to-jsx Debian 14 | 7.2.0+dfsg-3 | [DEBIAN-CVE-2024-21535](https://patchblox.com/security/data/fix/linux/debian-cve-2024-21535.md) | Oct 15, 2024 |

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Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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