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.
Affected products
wso2: api control plane; wso2: api manager; wso2: identity server; wso2: identity server as key manager; wso2: open banking am; wso2: open banking iam; wso2: open banking km; wso2: traffic manager; wso2: universal gateway
References1
- security.docs.wso2.com/en/latest/security-announcements/securit… Vendor Advisory
Metrics
- CVSS 3.1
-
9.4
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L - EPSS — exploit probability
- 1% percentile: 52 · as of 12 November 2026
- CWE
- CWE-693
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