Vulnerability in Hackmd Codimd
CVE-2025-46654
CodiMD through 2.2.0 has a CSP-based protection mechanism against XSS through uploaded JavaScript content, but it can be bypassed by uploading a .html file that references an uploaded .js file.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (15.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.000
Affected products
- Hackmd Codimd — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/hackmdio/codimd/issues/1910 (Exploit, Issue Tracking)
- github.com/zast-ai/vulnerability-reports/blob/main/formidable/file_upload/repor… (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-46654?
- CVE-2025-46654 is a medium-severity vulnerability in Hackmd Codimd, classified under CWE-424. CVSS score: 4.9/10. Published 2025-04-26.
- How severe is CVE-2025-46654?
- Medium severity. CVSS v3 base score is 4.9 out of 10.
- Is CVE-2025-46654 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.