Description
OxiCloud 0.9.1 through 0.9.3 contains an incorrect authorization vulnerability that allows anonymous visitors to keep share access after password protection is added. Attackers holding an existing oxi_shares share-ring cookie can request content via GET /api/files/{id} to read shared files or folder contents despite the new password.
References6
- github.com/AtalayaLabs/OxiCloud
- github.com/AtalayaLabs/OxiCloud/blob/v0.9.3/src/application/ser…
- github.com/AtalayaLabs/OxiCloud/blob/v0.9.3/src/infrastructure/…
- hackmd.io/@hieuPenguinnn/oxicloud-share-password-grant-not-revo…
- www.vulncheck.com/advisories/oxicloud-0.9.1-through-0.9.3-incor…
- hackmd.io/@hieuPenguinnn/oxicloud-share-password-grant-not-revo…
Metrics
- CVSS 3.1
-
3.7
LOW
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 4.0
-
6.3
MEDIUM
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 0% percentile: 29 · as of 10 November 2026
- CWE
- CWE-863
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.