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Arbitrary File Upload via System REST API in Multiple WSO2 Products Allows Remote Code Execution

CVSS 3.1 9.1 CRITICALCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-3418

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-3418

Published

WSO2 API Manager

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "WSO2",
                    "product": "WSO2 API Manager",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "4.4.0",
                            "lessThan": "4.4.0.67",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "4.5.0",
                            "lessThan": "4.5.0.52",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "4.6.0",
                            "lessThan": "4.6.0.16",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

WSO2 Traffic Manager

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "WSO2",
                    "product": "WSO2 Traffic Manager",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "4.5.0",
                            "lessThan": "4.5.0.51",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "4.6.0",
                            "lessThan": "4.6.0.16",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

WSO2 API Control Plane

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "WSO2",
                    "product": "WSO2 API Control Plane",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "4.5.0",
                            "lessThan": "4.5.0.53",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "4.6.0",
                            "lessThan": "4.6.0.17",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

WSO2 Universal Gateway

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "WSO2",
                    "product": "WSO2 Universal Gateway",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "4.5.0",
                            "lessThan": "4.5.0.52",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "4.6.0",
                            "lessThan": "4.6.0.16",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.impl

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "WSO2",
                    "product": "WSO2 Carbon API Management Implementation",
                    "packageName": "org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.impl",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "9.30.67",
                            "lessThan": "9.30.67.156",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "9.31.86",
                            "lessThan": "9.31.86.141",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "9.32.147",
                            "lessThan": "9.32.147.44",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "9.33.104",
                            "lessThanOrEqual": "*",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unknown"
                }

org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.rest.api.publisher.v1.common

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "WSO2",
                    "product": "WSO2 API Manager Publisher REST API V4",
                    "packageName": "org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.rest.api.publisher.v1.common",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "9.30.67",
                            "lessThan": "9.30.67.156",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "9.31.86",
                            "lessThan": "9.31.86.141",
                            "versionType": "custom"
                        },
                        {
                            "status": "affected",
                            "version": "9.32.147",
                            "lessThan": "9.32.147.44",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "9.33.104",
                            "lessThanOrEqual": "*",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unknown"
                }

org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.api

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "WSO2",
                    "product": "WSO2 Carbon API Management API",
                    "packageName": "org.wso2.carbon.apimgt:org.wso2.carbon.apimgt.api",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "9.30.67",
                            "lessThan": "9.30.67.156",
                            "versionType": "custom"
                        },
                        {
                            "status": "unaffected",
                            "version": "9.33.104",
                            "lessThanOrEqual": "*",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unknown"
                }

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

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Sources read 12 Nov 18:36 UTC · 273 of 275 readable · 271 fully read · documentation 469/469 current