CVE-2025-46655

4.9 mediumEPSS 0.2%

Medium (4.9). EPSS 0.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

4.9 medium

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 16% of CVEs (scores of 2026-10-31)
CWE: CWE-424
Published: 2025-04-26
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

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

Check your stack JSON