CVE-2026-21642

CVSS Score & Metrics

Base Score

6.1 / 10

Vector String

                                        CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N                                    

Vulnerability Description

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.

Vulnerability Details

Published Date

January 20, 2026

Last Modified

January 26, 2026

CWE ID

CWE-79

Source

NVD

Vendor

Revive

Product

Revive Adserver

External References

https://hackerone.com/reports/3470970

CVSS Score & Metrics

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