Bug 2571791 (CVE-2026-108564)

Summary: CVE-2026-108564 revive-adserver: revive-adserver: Cross-site scripting via unencoded banner identifier in invocation-tag interface
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerability-draftAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Revive Adserver. When the Direct Selection feature is enabled, banner identifiers in the invocation-tag generation interface are rendered into form fields without proper output encoding. A remote, unauthenticated attacker could exploit this reflected Cross-Site Scripting (XSS) vulnerability by tricking an authenticated user into visiting a crafted link, resulting in arbitrary script execution within the victim's browser session.
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Description OSIDB Bzimport 2026-11-11 17:41:43 UTC 
A reflected cross-site scripting vulnerability in the invocation-tag generation interface 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 Direct Selection is enabled, an attacker-controlled banner identifier can be included in HTML form fields without appropriate encoding. Direct Selection is disabled by default. The issue is fixed in Revive Adserver 6.0.9 by HTML-encoding banner identifier values in the invocation-option form fields.