CVE-2023-47107 PILOS account takeover through password reset poisoning
Attackers can poison password reset links via Host header manipulation to steal tokens and take over local user accounts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-47107?
CVE-2023-47107 is a high-severity vulnerability in THM-Health PILOS, published on 8 Nov 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
PILOS is an open source front-end for BigBlueButton servers with a built-in load balancer. The password reset component deployed within PILOS uses the hostname supplied within the request host header when building a password reset URL. It may be possible to manipulate the URL sent to PILOS users when so that it points to the attackers server thereby disclosing the password reset token if/when the link is followed. This only affects local user accounts and requires the password reset option to be enabled. This issue has been patched in version 2.3.0.
Which versions are affected by CVE-2023-47107?
It affects 1 product.
Products include Thm Pilos.
How do I fix CVE-2023-47107?
No fix has been published for CVE-2023-47107 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-47107 being exploited?
There is no known exploitation of CVE-2023-47107 in the wild and no public exploit code.
Other vulnerabilities in THM-Health PILOS
- CVE-2025-62523 PILOS Misconfigured the Access-Control-Allow-Origin Header
- CVE-2025-62524 PILOS Exposes PHP version
- CVE-2025-62781 PILOS is missing session regeneration after password change
- CVE-2026-22800 PILOS affected by a CSRF via GET request allows unintentional termination of all active video conferences
Sources
Also known as GHSA-mc6f-fj9h-5735.