CVE-2025-62781 PILOS is missing session regeneration after password change
Attackers with stolen session tokens retain access after password changes because the current session token is not regenerated, allowing continued unauthorized access.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-62781?
CVE-2025-62781 is a medium-severity vulnerability in THM-Health PILOS, published on 27 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-613
Which versions are affected by CVE-2025-62781?
It affects 1 product.
Products include Thm Pilos.
How do I fix CVE-2025-62781?
No fix has been published for CVE-2025-62781 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-62781 being exploited?
There is no known exploitation of CVE-2025-62781 in the wild and no public exploit code.
Other vulnerabilities in THM-Health PILOS
- CVE-2023-47107 PILOS account takeover through password reset poisoning
- CVE-2025-62523 PILOS Misconfigured the Access-Control-Allow-Origin Header
- CVE-2025-62524 PILOS Exposes PHP version
- CVE-2026-22800 PILOS affected by a CSRF via GET request allows unintentional termination of all active video conferences
Sources
Also known as GHSA-m8w5-8w3h-72wm.