Unknown · Revive Adserver · CVE-2025-55129
**Name of the Vulnerable Software and Affected Versions**
Revive Adserver (affected versions not specified)
**Description**
The software contains a flaw in username validation that allows anyone to register look-alike accounts and impersonate administrators. This issue persists after a previous fix for CVE-2025-52672, with impersonation possible through several alternate techniques, including homoglyphs. The vulnerability could indirectly impact over 1–10 million users through ad-delivery chains across thousands of installations worldwide. The issue involves handling of usernames, potentially allowing malicious actors to create accounts that visually resemble legitimate administrator accounts.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.