Vulnerability record/PUBLISHED/Published Nov 11, 2026 17:30:37 UTC

CVE-2026-108559

A reflected cross-site scripting vulnerability in the iframe invocation options of Revive Adserver 6.0.8 and earlier allows an unauthenticated attacker to execute JavaScript in an authenticated user's browser by persuading them to visit a crafted URL. When generating invocation tags for an any-size zone, the frame_width and frame_height request parameters are included in HTML attributes without appropriate encoding. The issue is fixed in Revive Adserver 6.0.9 by HTML-encoding the affected values in the invocation-option form fields.

Base score6.1/ 10

SeverityMediumCVSS 3.0

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes

Base severityMedium

Attack vectorNetworkAV

Attack complexityLowAC

Privileges requiredNonePR

User interactionRequiredUI

ScopeChangedS

Confidentiality impactLowC

Integrity impactLowI

Availability impactNoneA

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

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering Authorityhackerone

Last updatedNov 11, 2026 17:30:37 UTC

PublishedNov 11, 2026 17:30:37 UTC

ReservedOct 10, 2026 15:00:00 UTC

Credits

Adam Rayyan Aryasatya (kannrisha)