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CVE-2024-41657: GHSL-2024-035: Casdoor CORS misconfiguration

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2024-08-20 · updated 2026-06-17
• Weakness: CWE-942

Description

Casdoor is a UI-first Identity and Access Management (IAM) / Single-Sign-On (SSO) platform. In Casdoor 1.577.0 and earlier, a logic vulnerability exists in the beego filter CorsFilter that allows any website to make cross domain requests to Casdoor as the logged in user. Due to the a logic error in checking only for a prefix when authenticating the Origin header, any domain can create a valid subdomain with a valid subdomain prefix (Ex: localhost.example.com), allowing the website to make requests to Casdoor as the current signed-in user.

Affected products

• Casdoor: all versions

References

• https://github.com/casdoor/casdoor/blob/v1.577.0/routers/cors_filter.go#L45
• https://securitylab.github.com/advisories/GHSL-2024-035_GHSL-2024-036_casdoor/

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