Revive Adserver · Revive Adserver · CVE-2020-8142
**Name of the Vulnerable Software and Affected Versions**
Revive Adserver versions prior to 5.0.5
**Description**
A security restriction bypass issue has been found, allowing an attacker with access to the admin user interface to change the email address or password of the currently logged-in user without knowing the current password. This is achieved by altering the form payload, specifically by turning the `pwold` parameter into an array, which allows the operation to be authorized even if no password is provided. The attack requires physical access to the user interface of a logged-in user.
**Recommendations**
For Revive Adserver versions prior to 5.0.5, update to version 5.0.5 or later to resolve the issue. As a temporary workaround, consider restricting access to the admin user interface to minimize the risk of exploitation. Avoid using the `pwold` parameter in the affected form until the issue is resolved.