CVE-2021-47839
High
Description
Marky 0.0.1 contains a persistent cross-site scripting vulnerability that allows attackers to inject malicious scripts into markdown files. Attackers can upload crafted markdown files with embedded JavaScript payloads that execute when the file is opened, potentially enabling remote code execution.
SeverityHigh
CVSS7.2
Exploit probability—
ProductMarky
PublishedJan 16, 2026
First seenJan 16, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| vesparny Marky | 0.0.1 | — |
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