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1 vulnerability by vesparny
CVE-2021-47839 (GCVE-0-2021-47839)
Vulnerability from cvelistv5 – Published: 2026-01-16 19:09 – Updated: 2026-03-05 01:28
VLAI
Title
Marky 0.0.1 - Persistent Cross-Site Scripting
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/49831 | exploit |
| https://github.com/vesparny/marky | product |
| https://imgur.com/a/qclfrUx | exploit |
| https://www.vulncheck.com/advisories/marky-persis… | third-party-advisory |
Date Public
2021-04-05 00:00
Credits
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