Reflected XSS Vulnerability in Revive Adserver by Revive Adserver Team
CVE-2026-21642

6.1MEDIUM

Key Information:

Vendor

Revive

Status
Revive Adserver
Vendor
CVE Published:
20 January 2026

What is CVE-2026-21642?

A reflected XSS vulnerability exists in the banner-acl.php and channel-acl.php scripts of Revive Adserver. This flaw allows attackers to create a specially crafted URL containing an HTML payload. If an administrator visits this crafted link while logged in, the malicious HTML is executed in their browser, potentially compromising sensitive administrative actions.

Affected Version(s)

Revive Adserver 6 <= 6.0.4

References

https://hackerone.com/reports/3470970

CVSS V3.0

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.