Open Redirect in Basecamp Google Sign In
CVE-2025-58067
Basecamp's Google Sign-In adds Google sign-in to Rails applications. Prior to version 1.3.1, it is possible to redirect a user to another origin if the "proceed_to" value in the session store is set to a protocol-relative URL. Normally the value of this URL is only written and read by the library or the calling application. However, it may be possible to set this session value from a malicious site with a form submission. Any Rails applications using the google_sign_in gem may be vulnerable, if this vector can be chained with another attack that is able to modify the OAuth2 request parameters. This issue has been patched in version 1.3.1. There are no workarounds.
Vulnerability class: Open Redirect
EPSS: 0.002 (11.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N.
Affected products
- Basecamp Google_sign_in — versions < 1.3.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2025-58067?
- CVE-2025-58067 is a medium-severity vulnerability in Basecamp Google Sign In, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.2/10. Published 2025-08-29.
- How severe is CVE-2025-58067?
- Medium severity. CVSS v3 base score is 4.2 out of 10.