CVE-2023-6837

What it is

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.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account. High risk of data exposure.

Exploit odds

0.5% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2023-12-15 10:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 06:51 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.5% in the next 30 days (EPSS).
• Severity: 8.5 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2023-12-15 10:15 UTC

Last modified

2026-06-17 06:51 UTC

Exploit probability

0.5% · EPSS, next 30 days

Weakness

CWE-863 · Incorrect authorization

Record status

Modified

Affected

• wso2 Api Manager < 2.5.0.32
• wso2 Api Manager < 2.6.0.52
• wso2 Api Manager < 3.0.0.50
• wso2 Api Manager < 3.1.0.72
• wso2 Api Manager < 3.2.0.86
• wso2 Api Manager < 4.0.0.35
• wso2 Identity Server < 5.6.0.16
• wso2 Identity Server < 5.7.0.35

Attack profile CVSS 3.1 · 8.5

Attack vector

Network

Complexity

Low

Privileges needed

Low

User interaction

None

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2023-6837.md and follow it. Check whether this project is affected by CVE-2023-6837. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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