Open Redirect Affecting @better-auth/expo package, versions <1.2.10
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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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- published13 Jul 2025
- disclosed7 Jul 2025
- creditUnknown
Introduced: 7 Jul 2025
CVE-2025-53535 (opens in a new tab)How to fix?
Upgrade @better-auth/expo to version 1.2.10 or higher.
Overview
Affected versions of this package are vulnerable to Open Redirect via the parameter trustedOrigins in the expo function. An attacker can redirect users to arbitrary external sites by crafting malicious URLs.