Authorization Bypass Through User-Controlled Key Affecting causal/oidc package, versions >=3.0.0, <4.0.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PHP-CAUSALOIDC-8664937
- published29 Jan 2025
- disclosed28 Jan 2025
- creditHannes Lau
Introduced: 28 Jan 2025
CVE-2025-24856 (opens in a new tab)How to fix?
Upgrade causal/oidc to version 4.0.0 or higher.
Overview
Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key in the account linking logic. An attacker can anticipate and use the email address of a user to register a public frontend user account before the user's first OIDC login, leading to account takeover.
Note:
This is only exploitable if the IDP returns the field email containing the email address of the user.