GHSA-9x4v-xfq5-m8x5

Source

https://github.com/advisories/GHSA-9x4v-xfq5-m8x5

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/02/GHSA-9x4v-xfq5-m8x5/GHSA-9x4v-xfq5-m8x5.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-9x4v-xfq5-m8x5

Published

2025-02-05T21:49:39Z

Modified

2025-12-09T17:35:54.250145Z

Severity

5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

Better Auth URL parameter HTML Injection (Reflected Cross-Site scripting)

Details

Summary

The better-auth /api/auth/error page was vulnerable to HTML injection, resulting in a reflected cross-site scripting (XSS) vulnerability.

Details

The value of error URL parameter was reflected as HTML on the error page: https://github.com/better-auth/better-auth/blob/05ada0b79dbcac93cc04ceb79b23ca598d07830c/packages/better-auth/src/api/routes/error.ts#L81

Impact

An attacker who exploited this vulnerability by coercing a user to visit a specially-crafted URL could execute arbitrary JavaScript in the context of the user's browser.

Database specific

{
    "nvd_published_at": null,
    "cwe_ids": [
        "CWE-79"
    ],
    "github_reviewed_at": "2025-02-05T21:49:39Z",
    "severity": "MODERATE",
    "github_reviewed": true
}

References

Affected packages

npm / better-auth

Package

Name: better-auth; View open source insights on deps.dev
Purl: pkg:npm/better-auth

Affected ranges

Type: SEMVER
Events: Introduced

0.0.2

Fixed

1.1.16

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/02/GHSA-9x4v-xfq5-m8x5/GHSA-9x4v-xfq5-m8x5.json"