CVE-2019-9844
Cross-Site Scripting in simple-markdown
6.1
MEDIUM
CVSS 3.1
EPSS 0.36%
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.
How to fix CVE-2019-9844
To remediate CVE-2019-9844, upgrade the affected package to a fixed version below.
- —upgrade to 0.4.4 or later
Is CVE-2019-9844 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 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 |