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MEDIUM
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Description
HackerOne community member Huynh Pham Thanh Luc (nigh7c0r3) has reported a reflected XSS vulnerability in the afr.php delivery script of Revive Adserver. An attacker can craft a specific URL that includes an HTML payload in a parameter. If a logged in administrator visits the URL, the HTML is sent to the browser and malicious scripts would be executed.
Basic Information
ID
CVE-2026-21664
Source
hackerone
Published
Jan 20, 2026 at 20:48
Affected Product
Vendor
Revive
Product
Revive Adserver
Version
6
Affected Versions
Revive Revive Adserver 6