Vulnerability · Published Jul 10, 2024 · Assigned by GitHub_M
CVE-2024-38353CodiMD - Missing Image Access Controls and Unauthorized Image Access
Medium 5.3
In plain English
A medium-severity missing authorization in codimd from hackmdio. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei.
Official description
CodiMD allows realtime collaborative markdown notes on all platforms. CodiMD before 2.5.4 is missing authentication and access control vulnerability allowing an unauthenticated attacker to gain unauthorised access to image data uploaded to CodiMD. CodiMD does not require valid authentication to access uploaded images or to upload new image data. An attacker who can determine an uploaded image's URL can gain unauthorised access to uploaded image data. Due to the insecure random filename generation in the underlying Formidable library, an attacker can determine the filenames for previously uploaded images and the likelihood of this issue being exploited is increased. This vulnerability is fixed in 2.5.4.
Affected products (as reported)
Weakness: CWE-338, CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
References
- https://github.com/hackmdio/codimd/security/advisories/GHSA-2764-jppc-p2hm x_refsource_CONFIRM