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CVE-2026-87886 is a vulnerability classified as Incorrect Default Permissions, affecting Acronis Backup plugin for cPanel & WHM (affected versions: < 1.9.3.1021), Acronis Backup extension for Plesk (affected versions: < 1.8.11.638), and Acronis Backup plugin for DirectAdmin (affected versions: < 1.2.3.238). This vulnerability is rated High, with a CVSS score of 7.8. There is not enough data to determine whether this vulnerability has been exploited.
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Local privilege escalation due to insecure file permissions. The following products are affected: Acronis Backup plugin for cPanel & WHM (Linux) before build 1.9.3.1021, Acronis Backup extension for Plesk (Linux) before build 1.8.11.638, Acronis Backup plugin for DirectAdmin (Linux) before build 1.2.3.238.
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