CVE-2026-3418— Arbitrary File Upload via System REST API in Multiple WSO2 Products Allows Remote Code Execution
Quick assessment
Affected
WSO2 WSO2 API Manager
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
WSO2 API Manager是美国WSO2公司开源的一个API管理平台。 WSO2 API Manager 存在任意文件上传漏洞，可能导致攻击者利用漏洞破坏系统的机密性、完整性或可用性。
Possible ATT&CK Techniques 3 AI
T1059 · Command and Scripting Interpreter T1105 · Ingress Tool Transfer T1505.003 · Web ShellAffected Version Matrix 19
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| WSO2 | WSO2 API Control Plane | 4.5.0< 4.5.0.53 |
affected |
4.6.0< 4.6.0.17 |
affected | ||
| WSO2 | WSO2 API Manager | 4.4.0< 4.4.0.67 |
affected |
4.5.0< 4.5.0.52 |
affected | ||
4.6.0< 4.6.0.16 |
affected | ||
| WSO2 | WSO2 API Manager Publisher REST API V4 | 9.30.67< 9.30.67.156 |
affected |
9.31.86< 9.31.86.141 |
affected | ||
9.32.147< 9.32.147.44 |
affected | ||
9.33.104≤ * |
unaffected | ||
| WSO2 | WSO2 Carbon API Management API | 9.30.67< 9.30.67.156 |
affected |
9.33.104≤ * |
unaffected | ||
| WSO2 | WSO2 Carbon API Management Implementation | 9.30.67< 9.30.67.156 |
affected |
9.31.86< 9.31.86.141 |
affected | ||
9.32.147< 9.32.147.44 |
affected | ||
9.33.104≤ * |
unaffected | ||
| WSO2 | WSO2 Traffic Manager | 4.5.0< 4.5.0.51 |
affected |
4.6.0< 4.6.0.16 |
affected | ||
| WSO2 | WSO2 Universal Gateway | 4.5.0< 4.5.0.52 |
affected |
4.6.0< 4.6.0.16 |
affected |
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-3418
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Arbitrary File Upload via System REST API in Multiple WSO2 Products Allows Remote Code Execution
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
危险类型文件的不加限制上传
Source: CVE Program / CVE List V5
Vulnerability Title
WSO2 API Manager 任意文件上传漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WSO2 API Manager是美国WSO2公司开源的一个API管理平台。 WSO2 API Manager 存在任意文件上传漏洞，可能导致攻击者利用漏洞破坏系统的机密性、完整性或可用性。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| WSO2 | WSO2 API Manager | 4.4.0 ~ 4.4.0.67 | - |
|
| WSO2 | WSO2 Traffic Manager | 4.5.0 ~ 4.5.0.51 | - |
|
| WSO2 | WSO2 API Control Plane | 4.5.0 ~ 4.5.0.53 | - |
|
| WSO2 | WSO2 Universal Gateway | 4.5.0 ~ 4.5.0.52 | - |
|
| WSO2 | WSO2 Carbon API Management Implementation | 9.30.67 ~ 9.30.67.156 | - |
|
| WSO2 | WSO2 API Manager Publisher REST API V4 | 9.30.67 ~ 9.30.67.156 | - |
|
| WSO2 | WSO2 Carbon API Management API | 9.30.67 ~ 9.30.67.156 | - |
|
II. Public POCs for CVE-2026-3418
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-3418
请登录查看更多情报信息。
Vendor Advisories for CVE-2026-3418 (1)
-
🔗 Security Advisory WSO2-2026-5146/CVE-2026-3418 vendor-advisory
Same Patch Batch · WSO2 · 2026-08-06 · 19 CVEs total
| CVE-2026-5430 | 10.0 CRITICAL | Authentication Bypass via JWT Algorithm Mismatch in Multiple WSO2 Products Allows Account |
| CVE-2026-1728 | 9.8 CRITICAL | Privilege Escalation via System REST APIs in Multiple WSO2 Products Permits Admin Account |
| CVE-2025-15039 | 9.4 CRITICAL | Account Takeover via Conditional Authentication Script Logic in Multiple WSO2 Products |
| CVE-2025-14561 | 9.0 CRITICAL | Access Control Bypass via Publisher REST APIs in Multiple WSO2 Products Allows Cross-Tenan |
| CVE-2026-3415 | 8.7 HIGH | XML External Entity (XXE) Injection via Schema Validation in Multiple WSO2 Products Allows |
| CVE-2024-6541 | 6.8 MEDIUM | Information Disclosure and Integrity Violation via Improper Message Context Handling in Mu |
| CVE-2024-6832 | 5.9 MEDIUM | Account Lockout Failure via Secondary User Store Inaccessibility in Multiple WSO2 Products |
| CVE-2025-13394 | 5.4 MEDIUM | Cross-Site Request Forgery via Ajax Processor Endpoints in Multiple WSO2 Products Enables |
| CVE-2025-12317 | 5.0 MEDIUM | Improper Token Revocation via SOAP Services in Multiple WSO2 Products Allows Retained Acce |
| CVE-2024-8995 | 4.9 MEDIUM | Authorization Code issued for Deleted User reuse in Multiple WSO2 Products Allows Unauthor |
| CVE-2026-0637 | 4.4 MEDIUM | Sensitive Information Disclosure via Event Publisher Logging in Multiple WSO2 Products |
| CVE-2025-13909 | 4.3 MEDIUM | Information Disclosure via Multi-Tenant Authentication Flows in WSO2 Identity Server Allow |
| CVE-2025-11850 | 4.3 MEDIUM | Improper Implicit Association via User Store Initialization in WSO2 Identity Server [Ident |
| CVE-2025-6508 | 4.3 MEDIUM | User Interface Misrepresentation via Swagger UI Try-out Console in WSO2 API Manager Allows |
| CVE-2024-10302 | 4.0 MEDIUM | Improper Input Validation via Signup Process in Multiple WSO2 Products Enables Content Man |
| CVE-2025-14779 | 3.8 LOW | Improper Access Control via Secret Type Management API in WSO2 Identity Server |
| CVE-2025-13736 | 3.7 LOW | Username Enumeration via Login Interface in Multiple WSO2 Products Allows User Account Dis |
| CVE-2025-12627 | 2.4 LOW | Improper Refresh Token Implementation via User Impersonation Flow in WSO2 Identity Server |
IV. Related Vulnerabilities
Same product: WSO2 API Manager
-
CVE-2025-5802
Username Enumeration via Self Registration Flow in Multiple -
CVE-2026-3416
Predictable Pseudorandom Number Generation via Webhook HMAC -
CVE-2026-3415
XML External Entity (XXE) Injection via Schema Validation in -
CVE-2025-14561
Access Control Bypass via Publisher REST APIs in Multiple WS -
CVE-2025-6508
User Interface Misrepresentation via Swagger UI Try-out Cons
Same vendor: WSO2
-
CVE-2025-13166
Username Enumeration via SMS OTP Flow in WSO2 Identity Serve -
CVE-2025-5802
Username Enumeration via Self Registration Flow in Multiple -
CVE-2026-19515
OS Command Injection via Unit Test Execution in WSO2 Integra -
CVE-2026-4103
Cross-Site Scripting via HTML Sanitization in WSO2 Publisher -
CVE-2026-3096
Reverse Tabnabbing via New Tab Navigation in Multiple WSO2 P
Same weakness: CWE-434
-
CVE-2026-92820
Ninja Forms - File Uploads <= 3.3.34 - Unauthenticated Arbit -
CVE-2026-64949
Unrestricted File Upload Leading to Remote Code Execution in -
CVE-2026-64947
CSRF Bypass Leading to Remote Code Execution via Unrestricte -
CVE-2026-103541
formtools.org Form Tools Ajax actions.php uploadFile unrestr -
CVE-2026-76144
Genians, Inc Genian SSL PNS Unrestricted File Upload
V. Comments for CVE-2026-3418
No comments yet