CVE-2025-15039 - Vulnerability Details

- Account Takeover via Conditional Authentication Script Logic in Multiple WSO2 Products

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.

Published: 2026-08-06

Score: 9.4 Critical

EPSS: n/a

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

WSO2

WSO2 Identity Server

unaffected

Version	Status	Constraints
`0`	unknown	< 5.7.0
`5.7.0`	affected	< 5.7.0.130
`5.8.0`	affected	< 5.8.0.113
`5.9.0`	affected	< 5.9.0.173
`5.10.0`	affected	< 5.10.0.385
`5.11.0`	affected	< 5.11.0.432
`6.0.0`	affected	< 6.0.0.259
`6.1.0`	affected	< 6.1.0.260
`7.0.0`	affected	< 7.0.0.138
`7.1.0`	affected	< 7.1.0.45
`7.1.0`	affected	< 7.1.0.49
`7.2.0`	affected	< 7.2.0.7

WSO2

WSO2 API Manager

unaffected

Version	Status	Constraints
`0`	unknown	< 2.6.0
`2.6.0`	affected	< 2.6.0.150
`3.0.0`	affected	< 3.0.0.180
`3.1.0`	affected	< 3.1.0.356
`3.2.0`	affected	< 3.2.0.460
`3.2.1`	affected	< 3.2.1.79
`4.0.0`	affected	< 4.0.0.381
`4.1.0`	affected	< 4.1.0.244
`4.2.0`	affected	< 4.2.0.184
`4.3.0`	affected	< 4.3.0.95
`4.4.0`	affected	< 4.4.0.59
`4.5.0`	affected	< 4.5.0.44
`4.6.0`	affected	< 4.6.0.8

WSO2

WSO2 Open Banking AM

unaffected

Version	Status	Constraints
`0`	unknown	< 1.4.0
`1.4.0`	affected	< 1.4.0.143
`1.5.0`	affected	< 1.5.0.144
`2.0.0`	affected	< 2.0.0.405

WSO2

WSO2 Open Banking IAM

unaffected

Version	Status	Constraints
`0`	unknown	< 2.0.0
`2.0.0`	affected	< 2.0.0.425

WSO2

WSO2 Traffic Manager

unaffected

Version	Status	Constraints
`0`	unknown	< 4.5.0
`4.5.0`	affected	< 4.5.0.43
`4.6.0`	affected	< 4.6.0.8

WSO2

WSO2 Universal Gateway

unaffected

Version	Status	Constraints
`4.5.0`	affected	< 4.5.0.43
`4.5.0`	affected	< 4.5.0.44
`4.6.0`	affected	< 4.6.0.8

WSO2

WSO2 API Control Plane

unaffected

Version	Status	Constraints
`4.5.0`	affected	< 4.5.0.45
`4.6.0`	affected	< 4.6.0.9

WSO2

WSO2 Identity Server as Key Manager

unaffected

Version	Status	Constraints
`0`	unknown	< 5.7.0
`5.7.0`	affected	< 5.7.0.129
`5.9.0`	affected	< 5.9.0.179
`5.10.0`	affected	< 5.10.0.376

WSO2

WSO2 Open Banking KM

unaffected

Version	Status	Constraints
`0`	unknown	< 1.4.0
`1.4.0`	affected	< 1.4.0.137
`1.5.0`	affected	< 1.5.0.127

WSO2

WSO2 Carbon Identity Application Authentication Framework

unknown

Version	Status	Constraints
`5.12.153`	affected	< 5.12.153.66
`5.12.387`	affected	< 5.12.387.48
`5.14.97`	affected	< 5.14.97.94
`5.17.5`	affected	< 5.17.5.337
`5.17.118`	affected	< 5.17.118.24
`5.18.187`	affected	< 5.18.187.334
`5.18.248`	affected	< 5.18.248.34
`5.23.8`	affected	< 5.23.8.221
`5.24.8`	affected	< 5.24.8.29
`5.25.92`	affected	< 5.25.92.177
`5.25.705`	affected	< 5.25.705.23
`5.25.713`	affected	< 5.25.713.12
`5.25.724`	affected	< 5.25.724.8
`5.25.736`	affected	< 5.25.736.3
`7.0.78`	affected	< 7.0.78.171
`7.8.23`	affected	< 7.8.23.95
`7.8.586`	affected	< 7.8.586.21
`5.25.738`	unaffected	≤ 5.25.*
`7.8.646`	unaffected	≤ *

No data.

No data available yet.

Remediation

Vendor Solution

Follow the instructions given on https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4973/#solution

Tracking

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Advisories

No advisories yet.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4973/

History

Thu, 06 Aug 2026 08:15:00 +0000

Type	Values Removed	Values Added
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.
Title		Account Takeover via Conditional Authentication Script Logic in Multiple WSO2 Products
First Time appeared		Wso2 Wso2 wso2 Api Control Plane Wso2 wso2 Api Manager Wso2 wso2 Carbon Identity Application Authentication Framework Wso2 wso2 Identity Server Wso2 wso2 Identity Server As Key Manager Wso2 wso2 Open Banking Am Wso2 wso2 Open Banking Iam Wso2 wso2 Open Banking Km Wso2 wso2 Traffic Manager Wso2 wso2 Universal Gateway
Weaknesses		CWE-693
CPEs		cpe:2.3:a:wso2:wso2_api_control_plane:::::::: cpe:2.3:a:wso2:wso2_api_manager:::::::: cpe:2.3:a:wso2:wso2_carbon_identity_application_authentication_framework:::::::: cpe:2.3:a:wso2:wso2_identity_server:::::::: cpe:2.3:a:wso2:wso2_identity_server_as_key_manager:::::::: cpe:2.3:a:wso2:wso2_open_banking_am:::::::: cpe:2.3:a:wso2:wso2_open_banking_iam:::::::: cpe:2.3:a:wso2:wso2_open_banking_km:::::::: cpe:2.3:a:wso2:wso2_traffic_manager:::::::: cpe:2.3:a:wso2:wso2_universal_gateway::::::::
Vendors & Products		Wso2 Wso2 wso2 Api Control Plane Wso2 wso2 Api Manager Wso2 wso2 Carbon Identity Application Authentication Framework Wso2 wso2 Identity Server Wso2 wso2 Identity Server As Key Manager Wso2 wso2 Open Banking Am Wso2 wso2 Open Banking Iam Wso2 wso2 Open Banking Km Wso2 wso2 Traffic Manager Wso2 wso2 Universal Gateway
References		https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2026/WSO2-2025-4973/
Metrics		cvssV3_1 `{'score': 9.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L'}`

Subscriptions

Wso2 Wso2 Api Control Plane Wso2 Api Manager Wso2 Carbon Identity Application Authentication Framework 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

MITRE

Status: PUBLISHED

Assigner: WSO2

Published: 2026-08-06T07:33:23.097Z

Updated: 2026-08-06T07:33:23.097Z

Reserved: 2025-12-23T08:27:22.275Z

Link: CVE-2025-15039

Vulnrichment

No data.

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-08-06T09:30:02Z

Weaknesses

CWE-693
Protection Mechanism Failure

Tracking

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact Low

User Interaction None

Subscriptions

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