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.

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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

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