What’s Vulnerable › Vulnerabilities

CVE-2021-47840: Moeditor 0.2.0 - Persistent Cross-Site Scripting

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-01-16 · updated 2026-06-17
• Weakness: CWE-79

Description

Moeditor 0.2.0 contains a persistent cross-site scripting vulnerability that allows attackers to store malicious payloads within markdown files. Attackers can upload specially crafted markdown files with embedded JavaScript that execute when opened, potentially enabling remote code execution on the victim's system.

Affected products

• Moeditor: 0.2.0

References

• https://imgur.com/a/UdP4JaX
• https://moeditor.js.org/
• https://www.exploit-db.com/exploits/49830
• https://www.vulncheck.com/advisories/moeditor-persistent-cross-site-scripting
• https://www.vulncheck.com/advisories/moeditor-persistent-cross-site-scripting

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