CVE-2025-15039 Account Takeover via Conditional Authentication Script Logic in Multiple WSO2 Products
Attackers can bypass authentication steps to take over user accounts in WSO2 products when specific conditional authentication scripts are configured.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-15039?
CVE-2025-15039 is a critical authentication bypass vulnerability in Wso2 Api Manager, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Conditional Authentication (Adaptive Authentication) script does not correctly enforce the completion of all required authentication steps when a specific multi-step pattern involving certain authenticators is configured. This allows an attacker to bypass intermediate authentication challenges by exploiting how the script handles callbacks and re-execution of authentication steps.
Successful exploitation allows a malicious actor to gain unauthorized access to a targeted user account. This vulnerability can only be exploited when all of the following conditions are met: the application login flow contains a specific secondary authenticator, the Conditional Authentication script is configured with particular event callbacks and re-executes an authentication step, the targeted user has one of the impacted authenticators enrolled, and the attacker successfully completes any preceding authentication steps.
Weakness: CWE-693
Which versions are affected by CVE-2025-15039?
It affects 9 products.
Products include Wso2 Api Control Plane, Wso2 Api Manager, Wso2 Identity Server, Wso2 Identity Server as Key Manager, Wso2 Open Banking Am, Wso2 Open Banking Iam and 3 more.
How do I fix CVE-2025-15039?
No fix has been published for CVE-2025-15039 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2025-15039 being exploited?
There is no known exploitation of CVE-2025-15039 in the wild and no public exploit code.
Other vulnerabilities in Wso2 Api Manager
- CVE-2026-5430 WSO2 Multiple Products Path Traversal Vulnerability
- CVE-2026-1728 Privilege Escalation via System REST APIs in Multiple WSO2 Products Permits Admin Account Takeover
- CVE-2025-9312 Improper Certificate-Based Authentication Enforcement in Multiple WSO2 Products
- CVE-2025-10611 Potential Broken Access Control in Multiple WSO2 Products via System REST APIs
- CVE-2025-9152 Improper Privilege Management in Multiple WSO2 API Manager via keymanager-operations DCR Endpoint
Sources
Also known as GHSA-76r4-x438-gm5w.