Description
Decap CMS before 3.11.0 contains a path traversal vulnerability in the local proxy containment guard that uses plain string prefix comparison without path separator validation. Attackers can access sibling directories whose names begin with the repository directory name to read, write, or delete files outside the intended repository root.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| decaporg | decap-cms | < 3.11.0 | 3.11.0 |
References
- GitHub Security Advisory (GHSA-5rrq-v82w-qpfr) vendor-advisory
- Researcher Disclosure exploit technical-description
- Fixed Release Tag release-notes patch
- VulnCheck Advisory: decap-server Path Traversal via Sibling Directory Prefix Matching third-party-advisory