CVE-2021-47837
High
Description
Markdownify 1.2.0 contains a persistent cross-site scripting vulnerability that allows attackers to store malicious payloads within markdown files. Attackers can upload crafted markdown files with embedded scripts that execute when the file is opened, potentially enabling remote code execution.
SeverityHigh
CVSS7.2
Exploit probability—
ProductMarkdownify
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 |
|---|---|---|
| amitmerchant1990 Markdownify | 1.2.0 | — |
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