Arbitrary file upload in Wso2 Api Control Plane
CVE-2026-3418
The System REST API accepts user-supplied file uploads without enforcing sufficient validation on the file type or destination, allowing files to be written to arbitrary server-accessible locations. Exploitation requires authenticated admi…
Vulnerability class: Unrestricted File Upload
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Wso2 Api Control Plane — versions 4.5.0, 4.6.0
- Wso2 Api Manager — versions 4.4.0, 4.5.0, 4.6.0
- Wso2 Api Manager Publisher Rest V4 — versions 9.30.67, 9.31.86, 9.32.147
- Wso2 Carbon Api Management — versions 9.30.67, 9.33.104
- Wso2 Carbon Api Management Implementation — versions 9.30.67, 9.31.86, 9.32.147
- Wso2 Traffic Manager — versions 4.5.0, 4.6.0
- Wso2 Universal Gateway — versions 4.5.0, 4.6.0
Weakness classification (CWE)
References
- ed10eef1-636d-4fbe-9993-6890dfa878f8 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-3418?
- CVE-2026-3418 is a critical-severity vulnerability in Wso2 Api Control Plane, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.1/10. Published 2026-08-06.
- How severe is CVE-2026-3418?
- Critical severity. CVSS v3 base score is 9.1 out of 10.