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Threats Tagged 'cve-2026-21642'

View all threats tagged with 'cve-2026-21642'. Filter and sort to focus on specific types of threats.

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Active filters (1):Tag: cve-2026-21642

Threats Tagged 'cve-2026-21642'

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CVE-2026-21642 is a reflected Cross-Site Scripting (XSS) vulnerability found in Revive Adserver version 6, specifically in the banner-acl.php and channel-acl.php scripts. An attacker can craft a malicious URL containing HTML/JavaScript payloads that, when visited by a logged-in administrator, executes arbitrary scripts in their browser. This vulnerability requires user interaction (administrator clicking the URL) but does not require prior authentication to trigger the malicious URL. The CVSS 3.0 base score is 6.1 (medium severity), reflecting limited confidentiality and integrity impact but no availability impact. No known exploits are currently reported in the wild. European organizations using Revive Adserver 6 should prioritize patching or mitigating this issue to prevent potential administrative account compromise or session hijacking.

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