KEV Intelligence

Vulnerability report

Exploited in the wild High confidence Not in CISA KEV

CVE-2025-4210

Casdoor SCIM User Creation Endpoint scim.go HandleScim authorization

Casdoor / Casdoor · 1.811

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Severity
CVSS 6.9 · Medium
Confidence
High
Exploit status
Exploited in the wild
EPSS
1.8%
First observed
—
Last observed
—

Decision summary

What security teams need to know first

Direct answers before the deeper technical record.

What it is

CVE-2025-4210 is an unauthenticated Casdoor SCIM User Creation Endpoint scim.go HandleScim authorization. A vulnerability classified as critical was found in Casdoor up to 1.811.0. This vulnerability affects the...

Is it exploited?

Yes. KEV Intelligence tracks this CVE as a known exploited vulnerability. Confidence is high.

Who is affected?

Casdoor / Casdoor 1.811.

What should we do?

Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.

Overview

A vulnerability classified as critical was found in Casdoor up to 1.811.0

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. In Casdoor bis 1.811.0 wurde eine Schwachstelle entdeckt.

Sie wurde als kritisch eingestuft. Es geht um die Funktion HandleScim der Datei controllers/scim.go der Komponente SCIM User Creation Endpoint. Mittels dem Manipulieren mit unbekannten Daten kann eine authorization bypass-Schwachstelle ausgenutzt werden. Der Angriff kann über das Netzwerk erfolgen. Ein Aktualisieren auf die Version 1.812.0 vermag dieses Problem zu lösen. Der Patch wird als 3d12ac8dc2282369296c3386815c00a06c6a92fe bezeichnet. Als bestmögliche Massnahme wird das Einspielen eines Upgrades empfohlen.

Vendor Product Affected Status
n/a Casdoor 1.811 Affected
View vendor advisory (opens in new tab)
Published
02 May 2025
Exploitation Reported
02 May 2025
Attack vector
Remote
Complexity
Low
Privileges
None
User interaction
None

Tags

nuclei_scanner

CVE References

Exploitation evidence

Why KEV Intelligence marks this CVE as exploited

Third-party attestation and first-party sensor observation are shown separately so teams can judge the evidence chain.

Exploited in the wild

The Shadowserver

Recorded 02 May 2025

Independent exploitation attestation added to the KEV Intelligence record.

Proof of concept available

Nuclei Templates

Recorded 24 Jun 2026

Public scanner or PoC coverage increases practical exploitability.

Known exploited vulnerability sources

Per-source evidence links for KEV attestations are available through the KEV Intelligence Pro API.

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Source Added
The Shadowserver First 2025-05-02 15:31 UTC

Detection

Operational artifacts and observed signals

Make the evidence actionable in scanner, SOC, and edge-control workflows.

Observed signals

Request targets
0
User-Agents
0

Raw values available in Pro and Enterprise.

Virtual patch status

No KEV Intelligence virtual patch is currently available. Future rules ship for ModSecurity, Cloudflare, and AWS WAF.

Learn about virtual patches →

Scanner Artifacts

Scanner and exploit-framework references linked to this CVE.

Scanner Reference Detected
Nuclei https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-4210.yaml 24 Jun 2026

Risk and context

Severity, weaknesses, and research context

CVSS v4.0

6.9 Medium
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

EPSS

1.8%

Weaknesses

Improper Authorization CWE-285 Authorization Bypass Through User-Controlled Key CWE-639

All CVSS Scores

CVSS v4.0 6.9 Medium

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

CVSS v3.1 7.3 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS v3.0 7.3 High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS v2.0 7.5 High

AV:N/AC:L/Au:N/C:P/I:P/A:P

Potential Proof of Concepts

These PoCs are unverified and could contain malware. Use at your own risk.

Casdoor - Authorization Bypass

nuclei · Created Unknown

Timeline

From disclosure to observed exploitation

  1. Public PoC available

    Public proof-of-concept code published

  2. Nuclei template available

    Scanner coverage available

  3. CVE published

    Vulnerability disclosed publicly

  4. Added to KEV Intelligence KEV Feed

    High-confidence, third-party attested exploitation

  5. CVE ID reserved

    Identifier reserved by the CNA

Pro API

Automate this intelligence

Confidence, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.

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  • Evidence confidence and provenance
  • First-party sensor telemetry
  • PoC and scanner references
  • Affected versions and enrichment
  • Automation-ready JSON delivery

GET /api/v2/pro/kevs/CVE-2025-4210

Free JSON includes basic KEV fields 
{
  "cve_id": "CVE-2025-4210",
  "confidence": "High",
  "cvss_score": 6.9,
  "cvss_estimated": false,
  "epss_score": 0.01841,
  "exploit_status": {
    "exploited_in_the_wild": true,
    "active_exploitation_observed": false
  },
  "sensor_telemetry": { "attempts": 0, "sensors": 0 }
}

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