CVE-2025-71404
CVE-2025-71404 · better-auth before 1.1.16 Reflected XSS via error parameter
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 5.1 · Medium · EPSS 0.5% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
better-auth
- Versions
- ≥ 0, < 1.1.16: Affected (semver)
- 1.1.16: Not affected (semver)
Update to 1.1.16
better-auth npm
- Affected ranges
- SEMVER: ≥ 0.0.2, < 1.1.16
Update to 1.1.16
Original sources
- https://github.com/better-auth/better-auth/security/advisories/GHSA-9x4v-xfq5-m8x5
- https://github.com/better-auth/better-auth/commit/05ada0b79dbcac93cc04ceb79b23ca598d07830c
- https://www.vulncheck.com/advisories/better-auth-before-reflected-xss-via-error-parameter
- https://nvd.nist.gov/vuln/detail/CVE-2025-71404