What’s Vulnerable › Vulnerabilities

CVE-2025-46655

• Severity: medium (CVSS 4.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-26 · updated 2026-06-17
• Weakness: CWE-424

Description

CodiMD through 2.5.4 has a CSP-based protection mechanism against XSS through uploaded SVG documents containing JavaScript, but it can be bypassed in certain cases of different-origin file storage, such as AWS S3. NOTE: it can be considered a user error if AWS is employed for hosting untrusted JavaScript content, but the selected architecture within AWS does not have components that are able to insert Content-Security-Policy headers.

Affected products

• hackmdio codimd: through 2.5.4

References

• https://github.com/hackmdio/codimd/issues/1910
• https://github.com/zast-ai/vulnerability-reports/blob/main/formidable/file_upload/report.md
• https://github.com/hackmdio/codimd/issues/1910

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