CVE-2026-21664

MediumCVSS 6.1/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 6.1/10CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jan 20, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-21664: Medium severity, CVSS 6.1 | Vulnix