Plone CMS 3.1.x uses invariant data (a client username and a server secret) when calculating an HMAC-SHA1 value for an authentication cookie, which makes it easier for remote attackers to gain permanent access to an account by sniffing the network.
{
"cwe_ids": [],
"github_reviewed": true,
"github_reviewed_at": "2023-09-22T23:41:41Z",
"nvd_published_at": "2008-03-20T00:44:00Z",
"severity": "MODERATE"
}