What’s Vulnerable › Vulnerabilities
CVE-2025-62781: PILOS is missing session regeneration after password change
- Severity: medium (CVSS 5.0 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-10-27 · updated 2026-10-08
- Weakness: CWE-613
Description
PILOS (Platform for Interactive Live-Online Seminars) is a frontend for BigBlueButton. Prior to 4.8.0, users with a local account can change their password while logged in. When doing so, all other active sessions are terminated, except for the currently active one. However, the current session’s token remains valid and is not refreshed. If an attacker has previously obtained this session token through another vulnerability, changing the password will not invalidate their access. As a result, the attacker can continue to act as the user even after the password has been changed. This vulnerability is fixed in 4.8.0.
Affected products
- THM-Health PILOS: before 4.8.0 — fixed in 4.8.0
How to fix
Upgrade to a fixed version: THM-Health PILOS 4.8.0. Check the vendor advisory for mitigations.
References
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