ClipBucket v5 before 5.5.3-#197 contains a path traversal vulnerability in the admin template editor that allows authenticated administrators to overwrite PHP files by supplying directory traversal sequences in the folder parameter. Attackers with manage_template_access permission can traverse outside the layout directory to modify executable PHP files and achieve remote code execution as the web server user.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://github.com/MacWarrior/clipbucket-v5
disclosure@vulncheck.com
https://github.com/MacWarrior/clipbucket-v5/blob/61cce55ab26ef88fb782dfde47b44c…
disclosure@vulncheck.com
https://github.com/MacWarrior/clipbucket-v5/commit/f31de49b2194482ffef7147aa1e9…
disclosure@vulncheck.com
https://github.com/MacWarrior/clipbucket-v5/releases/tag/5.5.3-%23197
disclosure@vulncheck.com
https://hackmd.io/@leediay/S1AIRjzqfx
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/clipbucket-v5-before-5.5.3-197-path-traver…
disclosure@vulncheck.com