by Kastro CVE-2026-3418
WSO2 WSO2 API Manager — Arbitrary File Upload via System REST API in Multiple WSO2 Products Allows Remote Code Execution
Description · from the CVE record
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 administrative access with publisher privileges. Successful exploitation permits an authenticated publisher to upload files to server-accessible locations. Depending on the deployment environment and how uploaded files are handled, this could lead to the execution of uploaded content, potentially resulting in remote code execution.
Affected
ProductAffectedFixed inSource
WSO2 API Manager4.4.0 – < 4.4.0.674.4.0.67CNA
WSO2 API Manager4.5.0 – < 4.5.0.524.5.0.52CNA
WSO2 API Manager4.6.0 – < 4.6.0.164.6.0.16CNA
WSO2 Traffic Manager4.5.0 – < 4.5.0.514.5.0.51CNA
WSO2 Traffic Manager4.6.0 – < 4.6.0.164.6.0.16CNA
WSO2 API Control Plane4.5.0 – < 4.5.0.534.5.0.53CNA
WSO2 API Control Plane4.6.0 – < 4.6.0.174.6.0.17CNA
WSO2 Universal Gateway4.5.0 – < 4.5.0.524.5.0.52CNA
WSO2 Universal Gateway4.6.0 – < 4.6.0.164.6.0.16CNA
WSO2 Carbon API Management Implementation9.30.67 – < 9.30.67.1569.30.67.156CNA
WSO2 Carbon API Management Implementation9.31.86 – < 9.31.86.1419.31.86.141CNA
WSO2 Carbon API Management Implementation9.32.147 – < 9.32.147.449.32.147.44CNA
Scores by source
WSO2 (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total