CVE-2025-69602: Altumcode 66biolinks

Critical severity, CVSS 9.1. EPSS: 0.4% chance of exploitation in the next 30 days.

A session fixation vulnerability exists in 66biolinks v62.0.0 by AltumCode, where the application does not regenerate the session identifier after successful authentication. As a result, the same session cookie value is reused for users logging in from the same browser, allowing an attacker who can set or predict a session ID to potentially hijack an authenticated session.

Affected products

• Altumcode 66biolinks: version 62.0.0 only

Published 2026-01-28. Last modified 2026-06-17.