Open Redirect Affecting better-auth package, versions <1.1.20
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-JS-BETTERAUTH-8746067
- published25 Feb 2025
- disclosed24 Feb 2025
- creditSumeet, Shivaraj
Introduced: 24 Feb 2025
CVE-2025-27143 (opens in a new tab)How to fix?
Upgrade better-auth to version 1.1.20 or higher.
Overview
better-auth is a The most comprehensive authentication library for TypeScript.
Affected versions of this package are vulnerable to Open Redirect due to improper validation of the `callbackURL parameter in the email verification endpoint and other endpoints that accept a callback URL.