Description
Sourcecodester Markdown to HTML Converter v1.0 is vulnerable to a Cross-Site Scripting (XSS) in the "Markdown Input" field, allowing a remote attacker to inject arbitrary HTML/JavaScript code that executes in the victim's browser upon clicking the "Convert to HTML" button.
Affected products
rems: markdown to html converter
References3
- github.com/ChuckBartowski7/Vulnerability-Research/blob/main/CVE… ExploitThird Party Advisory
- github.com/ChuckBartowski7/Vulnerability-Research/blob/main/CVE… ExploitThird Party Advisory
- www.sourcecodester.com/php/18295/markdown-html-converter-using-… Product
Metrics
- CVSS 3.1
-
6.1
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - EPSS — exploit probability
- 0% percentile: 21 · as of 9 November 2026
- CWE
- CWE-79
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.