Codimd
CVE-2025-46654
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Alternate path protection
|
| Impact | CVSS score of 4.9 (MEDIUM). Attack characteristics: network attack vector, high complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available. EPSS exploitation probability: 0.16%. |
| Exploit ScenarioDerived | This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the medium-severity affected system. |
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Alert meAnalysisAIv1 – Mar 28, 2026
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. Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
Affects your stack
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Technical ContextAI · show details
This vulnerability is classified under CWE-424. 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. Affected products include: Hackmd Codimd. Version information: through 2.2.0.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
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.
Executive ViewAI
Organizations using CodiMD through 2.2.0 should be aware of moderate risk from CVE-2025-46654 rated CVSS 4.9. Exploitation could compromise the security of affected deployments. Proof-of-concept code is publicly available. Organizations should apply vendor updates when available and monitor for exploitation.
Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)CVE.org
HackMD CodiMD <2.5.2 is vulnerable to Denial of Service. Rated high severity (CVSS 7.5), this vulnerability is remotely
CodiMD allows realtime collaborative markdown notes on all platforms. Rated medium severity (CVSS 6.1), this vulnerabili
CodiMD 1.3.1, when Safari is used, allows XSS via an IFRAME element with allow-top-navigation in the sandbox attribute,
CodiMD allows realtime collaborative markdown notes on all platforms. Rated medium severity (CVSS 5.3), this vulnerabili
Exploit-DB