CVSS 5.4 (medium) · published 2026-10-31
WebDyne versions from 2.014 before 3.022 for Perl issue session cookies without the Secure, HttpOnly and SameSite attributes. WebDyne::Session sets its session cookie with only a name, value and path. Browsers then send the session ID over plain HTTP and with cross-site requests, and expose it to page scripts. A network attacker or an injected script can steal the session, and another site can make requests that carry it.
Weakness: CWE-614, CWE-1004, CWE-1275
Source: NVD CVE-2026-78188
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