CVE-2025-46655

Public Exploit

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.

Category

4.9
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.03%
Affected: HackMD CodiMD
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2025-46655?
CVE-2025-46655 has been scored as a medium severity vulnerability.
How to fix CVE-2025-46655?
To fix CVE-2025-46655, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-46655 being actively exploited in the wild?
It is possible that CVE-2025-46655 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-46655?
CVE-2025-46655 affects HackMD CodiMD.
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