Vulnerability Details CVE-2026-21663
HackerOne community member Patrick Lang (7yr) has reported a reflected XSS vulnerability in the banner-acl.php 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 9.5%
CVSS Severity
CVSS v3 Score 6.1
References
Products affected by CVE-2026-21663
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cpe:2.3:a:aquaplatform:revive_adserver:*