In plain language
What this advisory means
Multiple WSO2 products have a vulnerability that lets attackers upload files without restriction. This can lead to running harmful code on the affected server, potentially compromising the entire system.
Technical explanation
How the issue affects the environment
WSO2's API Control Plane, API Manager, Traffic Manager, and Universal Gateway suffer from a path traversal vulnerability. This flaw allows attackers to bypass normal file upload restrictions by manipulating file paths, enabling them to upload arbitrary files. Exploiting this can result in remote code execution, giving attackers control over the affected system.
Operational impact
Why teams should care
If exploited, attackers can gain unauthorized access to systems, potentially leading to data breaches, service disruptions, and compromise of business operations. This undermines trust in the affected services and may expose organizations to regulatory and financial risks.
Immediate action
Organizations should apply all mitigations as per WSO2's official instructions. They must ensure compliance with CISA's Binding Operational Directive 26-04 for prioritizing security updates based on risk and follow forensic triage guidance. If mitigations are unavailable, consider discontinuing product use or following guidance appropriate to cloud services.
Affected and fixed releases
Temporary risk reduction
No separate workaround was supplied in the source feed. Use the official vendor advisory before changing production controls.
Evidence and validation checklist
- CISA Known Exploited Vulnerabilities Catalog entry dated 2026-09-24
- CISA Binding Operational Directive 26-04 (BOD 26-04) guidance on remediation and forensic triage
- WSO2 security advisory URL referenced by CISA
- NVD entry for CVE-2026-5430
Authoritative reference
CISA Known Exploited Vulnerabilities
QCS detected and normalized this record from the official source. Vendor guidance remains authoritative.