How severe is CVE-2025-4210?

No CVSS score has been assigned to CVE-2025-4210 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2025-4210?

CVE-2025-4210 affects the following packages: github.com/casdoor/casdoor (Go). Ecosystems affected: Go.

How do I fix CVE-2025-4210?

Update github.com/casdoor/casdoor to 1.812.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-4210 is resolved across your whole dependency graph.

How do I detect CVE-2025-4210 in my Go dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/casdoor/casdoor, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2025-4210 if there is no patch (or I can't update yet)?

If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Is CVE-2025-4210 actively exploited in the wild?

No public exploit code has been indexed for CVE-2025-4210 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2025-4210?

CVE-2025-4210 has an EPSS (Exploit Prediction Scoring System) score of 1.8%, placing it in the 79th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2025-4210?

CVE-2025-4210 is classified as CWE-285 (CWE-285), CWE-639 (CWE-639). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

Is there exploit tooling available for CVE-2025-4210?

A Nuclei detection template exists for CVE-2025-4210, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2025-4210 published, and has it been updated?

CVE-2025-4210 was published on May 2, 2025 and was last updated on October 28, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CVE-2025-4210: casdoor — Fixed in 1.812.0

Exploitation Status

No confirmed exploitation observed yet

CISA assesses this as automatable — exploitation doesn’t require manual, per-target effort, which raises the odds of mass scanning and opportunistic attacks.
CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2025-4210.

EPSS Exploitation Probability

via FIRST.org ↗

1.8%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs79th percentile — riskier than 79% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected

🐹github.com/casdoor/casdoor

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

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.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐹Go	`github.com/casdoor/casdoor`	all versions	1.812.0`go get github.com/casdoor/casdoor@v1.812.0`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/casdoor/casdoor, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/casdoor/casdoor to 1.812.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-4210 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

How to detect CVE-2025-4210

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id cve-2025-4210 -u https://target

Template: Casdoor - Authorization Bypass
Severity: high
Impact: Attackers can bypass authorization, potentially gaining unauthorized access to sensitive data or functionalities.
Remediation: Upgrade to version 1.812.0.

Template by ProjectDiscovery nuclei-templates (theamanrawat), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

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.

O3 Security · Impact-Aware SCA

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CVE-2025-4210 — casdoor