User enumeration is possible by performing a timing attack on the login or password reset pages with user credentials.
This was originally disclosed in https://www.silverstripe.org/download/security-releases/ss-2017-005/ for CMS 3 but was not patched in CMS 4+
{
"github_reviewed": true,
"cwe_ids": [
"CWE-204"
],
"nvd_published_at": null,
"github_reviewed_at": "2025-04-10T20:12:55Z",
"severity": "MODERATE"
}