Reflected XSS Vulnerability in Revive Adserver by Revive Adserver
CVE-2026-21664

6.1MEDIUM

Key Information:

Vendor

Revive

Status
Revive Adserver
Vendor
CVE Published:
20 January 2026

What is CVE-2026-21664?

A reflected XSS vulnerability exists in the afr.php delivery script of Revive Adserver. This vulnerability allows an attacker to craft a malicious URL containing an HTML payload. When logged in administrators access this URL, the payload is executed by their browsers, leading to potential exploitation. As a result, this vulnerability poses significant security risks to users, emphasizing the need for immediate attention.

Affected Version(s)

Revive Adserver 6 <= 6.0.4

References

https://hackerone.com/reports/3468169

CVSS V3.0

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.