GHSL-2024-035: Casdoor CORS misconfiguration

published 2024-08-20 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-2615 , GHSA-mchx-7j67-8mcf , GO-2024-3087

cvss: 8.1; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.8%; EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits: 0; none known

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.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: total
Assessed: 2 y ago (2024-08-20)

Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

securitylab.github.com https://securitylab.github.com/advisories/GHSL-2024-035_GHSL-2024-036_casdoor/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
GitHub	3.1	8.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
go	github.com/casdoor/casdoor	<=1.557.0 all versions	no fix listed

Affected products

casdoor casdoor
casbin casdoor

Classification

Weakness

CWE-942 Permissive Cross-domain Security Policy with Untrusted Domains
CWE-697 Incorrect Comparison

References

securitylab.github.com /advisories/GHSL-2024-035_GHSL-2024-036_casdoor/
exploit, third-party-advisory
github.com /casdoor/casdoor/blob/v1.577.0/routers/cors_filter.go#L45
web, product
nvd.nist.gov /vuln/detail/CVE-2024-41657
advisory
github.com /casdoor/casdoor
package
securitylab.github.com /advisories/GHSL-2024-035_GHSL-2024-036_casdoor
advisory
github.com /advisories/GHSA-mchx-7j67-8mcf
advisory

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary