Assessment
Why it matters
CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 100.0%; technical severity is CVSS 9.8.
Certain WSO2 products allow unrestricted file upload with resultant remote code execution. The attacker must use a /fileupload endpoint with a Content-Disposition directory traversal sequence to reach a directory under the web root, such as a ../../../../repository/deployment/server/webapps directory. This affects WSO2 API Manager 2.2.0 up to 4.0.0, WSO2 Identity Server 5.2.0 up to 5.11.0, WSO2 Identity Server Analytics 5.4.0, 5.4.1, 5.5.0 and 5.6.0, WSO2 Identity Server as Key Manager 5.3.0 up to 5.11.0, WSO2 Enterprise Integrator 6.2.0 up to 6.6.0, WSO2 Open Banking AM 1.4.0 up to 2.0.0 and WSO2 Open Banking KM 1.4.0, up to 2.0.0.
Who should care
- Teams operating Api Manager, Enterprise Integrator, Identity Server +6 more
- Vulnerability and exposure management teams
- Security operations teams monitoring exploitation activity
Response plan
What I would do
- Confirm whether Api Manager, Enterprise Integrator, Identity Server +6 more is present in the environment.
- Identify affected versions and establish whether vulnerable services are exposed or reachable.
- Apply updates per vendor instructions.
- Review relevant security telemetry for evidence of attempted or successful exploitation.
- Document the remediation decision and track it to verified completion.
Vendor remediation
Patch and remediation links
Use the vendor source below to confirm the correct fixed version, package or mitigation for your affected product.
Technical details
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-22
- Affected versions
- Wso2 Api Manager (Start Including: 2.2.0, End Including: 4.0.0); Wso2 Enterprise Integrator (Start Including: 6.2.0, End Including: 6.6.0); Wso2 Identity Server (Start Including: 5.2.0, End Including: 5.11.0); Wso2 Identity Server Analytics (Version: 5.6.0); Wso2 Identity Server As Key Manager (Start Including: 5.3.0, End Including: 5.10.0); Wso2 Multiple Products; Wso2 Open Banking Am (Start Including: 1.3.0, End Including: 2.0.0); Wso2 Open Banking Iam (Version: 2.0.0)
- Published
- 18 April 2022
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
Signal timeline
- CVE published
- Added to CISA KEV
- Latest EPSS score: 100.0%
- Signal calculated at 88