Bug 2571794 (CVE-2026-108560)

Summary: CVE-2026-108560 revive-adserver: revive-adserver: Cross-site scripting via crafted URL
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. This vulnerability allows an unauthenticated remote attacker to execute arbitrary scripts in a victim's browser via reflected cross-site scripting (XSS). By persuading a user to access a specially crafted link, the attacker takes advantage of improper input encoding in the updates-history.php script, which embeds unencoded parameters directly into the server response. If exploited, an attacker could access sensitive session information or perform unauthorized actions on behalf of the victim.
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Description OSIDB Bzimport 2026-11-11 17:41:54 UTC 
A reflected cross-site scripting vulnerability in updates-history.php in Revive Adserver 6.0.8 and earlier allows an unauthenticated attacker to execute JavaScript in a victim's browser by persuading them to visit a crafted URL. Attacker-controlled values are included in XML command attributes without appropriate encoding, allowing injection of executable XHTML into the response. The preliminary session check omits GET xajax requests, exposing an unauthenticated attack path, while authenticated administrator requests also reach the unsafe output. The issue is fixed in Revive Adserver 6.0.9 by applying the session check to both GET and POST requests and encoding XML command attribute values in both response serializers.