# CVE-2025-4210: Casdoor - Information Disclosure

> Live exploitation tracking for CVE-2025-4210 by the CrowdSec Live Exploit Tracker, built from real-world attack data crowdsourced from CrowdSec's global network.

Page: https://tracker.crowdsec.net/cves/CVE-2025-4210

## Key facts

- **Exploitation phase:** Limited Exploitation. The vulnerability is known but shows very limited attacker interest or exploitation activity.
- **CVSS score:** 6.9
- **Public exploit available:** Yes
- **Affected products:** Casdoor
- **Weaknesses:** CWE-639 (Authorization Bypass Through User-Controlled Key); CWE-285 (Improper Authorization)
- **Tags:** web_application

## Description

A vulnerability classified as critical was found in Casdoor up to 1.811.0. This vulnerability affects the function HandleScim of the file controllers/scim.go of the component SCIM User Creation Endpoint. The manipulation leads to authorization bypass. The attack can be initiated remotely. Upgrading to version 1.812.0 is able to address this issue. The name of the patch is 3d12ac8dc2282369296c3386815c00a06c6a92fe. It is recommended to upgrade the affected component.

## CrowdSec analysis

[CVE-2025-4210](https://euvd.enisa.europa.eu/vulnerability/CVE-2025-4210) is a critical vulnerability in Casdoor up to version 1.811.0 that allows remote attackers to bypass authorization via the SCIM User Creation Endpoint. Exploiting this flaw could enable unauthorized access to sensitive user information or unauthorized user creation, posing significant risks to affected systems. Upgrading to version 1.812.0 is strongly recommended to mitigate this issue.

CrowdSec has been tracking this vulnerability and its exploits since 11th of February 2026.

Data from the CrowdSec community indicates that exploitation of CVE-2025-4210 is highly selective and intelligence-driven. Threat actors use advanced reconnaissance and carefully choose their targets, often as part of sophisticated campaigns or advanced persistent threat operations.
Telemetry from the CrowdSec network also shows that exploitation activity for CVE-2025-4210 remains steady week-over-week. Attack volumes are consistent with long-term trends, indicating sustained interest from threat actors. CVE-2025-4210 continues to be an active part of the threat landscape and will likely remain this way for the forseeable future.

Attackers exploit this vulnerability by sending unauthenticated requests to endpoints such as `/scim/v2/Users` or `/api/scim/v2/Users`, bypassing authorization controls to access sensitive SCIM user data.

## Timeline

- 2025-05-02: CVE Published. CVE-2025-4210 is published to NVD.
- 2026-02-11: Rule Released. CrowdSec releases a rule to detect CVE-2025-4210 exploitation attempts against the CrowdSec Network.
- 2026-02-11: CrowdSec First Seen. CrowdSec observes in-the-wild exploitation of CVE-2025-4210 for the first time.

## References

- https://github.com/casdoor/casdoor/releases/tag/v1.812.0
- https://github.com/casdoor/casdoor/commit/3d12ac8dc2282369296c3386815c00a06c6a92fe
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-4210.yaml

## Live exploitation data

The [Live Exploit Tracker page](https://tracker.crowdsec.net/cves/CVE-2025-4210) follows observed exploitation activity for CVE-2025-4210. [Request an API key](https://tracker.crowdsec.net/request-api-key) for full access to its exploitation timeline, attacking IP addresses and blocklists.