Unknown · Revive Adserver · CVE-2021-22948
**Name of the Vulnerable Software and Affected Versions**
revive-adserver versions prior to 5.3.0
**Description**
The issue is related to the generation of session IDs, which is based on the cryptographically insecure `uniqid()` PHP function. This could potentially allow an attacker to brute force session IDs and take over a specific account under certain circumstances.
**Recommendations**
For versions prior to 5.3.0, update to version 5.3.0 or later to resolve the issue. As a temporary workaround, consider implementing additional security measures to protect against brute force attacks on session IDs.