CVE-2025-14546 (GCVE-0-2025-14546)
Vulnerability from cvelistv5 – Published: 2025-12-19 05:00 – Updated: 2025-12-19 15:39
VLAI
EPSS
VEX
Summary
Versions of the package fastapi-sso before 0.19.0 are vulnerable to Cross-site Request Forgery (CSRF) due to the improper validation of the OAuth state parameter during the authentication callback. While the get_login_url method allows for state generation, it does not persist the state or bind it to the user's session. Consequently, the verify_and_process method accepts the state received in the query parameters without verifying it against a trusted local value. This allows a remote attacker to trick a victim into visiting a malicious callback URL, which can result in the attacker's account being linked to the victim's internal account.
Severity
6.3 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-19 15:39 UTC
CWE
- CWE-285 - Cross-site Request Forgery (CSRF)
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| n/a | fastapi-sso |
Affected:
0 , < 0.19.0
(semver)
|
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