CVE-2019-9844
MEDIUM6.1EPSS 0.36%Cross-Site Scripting in simple-markdown
Published: 4/9/2019Modified: 11/8/2023
Also known as:GHSA-qj3f-9gmq-fwv5
Description
Versions of `simple-markdown` prior to 0.4.4 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 0.4.4 or later.
Affected packages (1)
- npm/simple-markdownfrom 0, < 0.4.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
References (9)
- ADVISORYhttps://github.com/advisories/GHSA-qj3f-9gmq-fwv5
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2019-9844
- PATCHhttps://github.com/Khan/simple-markdown
- WEBhttps://github.com/Khan/simple-markdown/pull/63
- WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/JFLP3KJVSV5VWMNEBRXLGRVYFXOV5KOG
- WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/KZG2I7VH7WLSEUQ77KYP5CRAVFT2RK2U
- WEBhttps://lists.fedoraproject.org/archives/list/[email protected]/message/O5EFW655O3BXZYAPB65XEREXB2DSNSOT
- WEBhttps://www.npmjs.com/advisories/815
- WEBhttps://www.npmjs.com/package/simple-markdown/v/0.4.4