CVE-2025-71404: better-auth versions after v0.0.2 and before 1.1.16 contain a reflected cross-site scripting (XSS) vulnerability on the /api/auth/error page, where the value of the 'error' URL par
better-auth versions after v0.0.2 and before 1.1.16 contain a reflected cross-site scripting (XSS) vulnerability on the /api/auth/error page, where the value of the 'error' URL parameter is reflected as HTML without proper neutralization. An attacker who coerces a user into visiting a specially-crafted URL can execute arbitrary JavaScript in the context of the user's browser. The issue is fixed in version 1.1.16.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-71404
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2025-71404 | coverage & exploitation status | NVD · CVE.org |
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