CVE detail
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 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.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 13.9 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 3
- within the 30d window
- Peak daily
- 3
- highest bucket
Evidence
Source links by recency
3 source links · newest first
- https://www.vulncheck.com/advisories/better-auth-before-reflected-xss-via-error-parameterwww.vulncheck.com
No excerpt available.
Exploitwww.vulncheck.comAug 1, 2026, 1:16 PM No excerpt available.
Exploitgithub.comAug 1, 2026, 1:16 PM- https://github.com/better-auth/better-auth/commit/05ada0b79dbcac93cc04ceb79b23ca598d07830cgithub.com
No excerpt available.
Exploitgithub.comAug 1, 2026, 1:16 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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