High severity7.2NVD Advisory· Published Jan 16, 2026· Updated Apr 15, 2026
CVE-2021-47837
CVE-2021-47837
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.
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Affected products
2(expand)+ 1 more
- (no CPE)
- (no CPE)range: =1.2.0
Patches
Vulnerability mechanics
References
3News mentions
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