CVE-2026-21642
Medium · 6.1CVSS
6.1
EPSS
0.2%
Published
Jan 20, 2026
CISA due date
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The record
HackerOne community member Patrick Lang (7yr) has reported a reflected XSS vulnerability in the `banner-acl.php` and `channel-acl.php` scripts 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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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