CVE WatchNov 11, 2026

CVE-2026-108559

A reflected cross-site scripting vulnerability in the iframe invocation options of Revive Adserver 6.0.8 and earlier allows an unauthenticat

CVSS

6.1

Medium

EPSS

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KEV

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Exploit Today

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0-100

Published: Nov 11, 2026 · Last modified: Nov 11, 2026 · CWE-79

EPSS · 30d

Not enough EPSS history yet.

Technical description

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.

Official references

hackerone.comhttps://hackerone.com/reports/3908050

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