CVE-2026-87886

Acronis Backup plugin for cPanel & WHM · privilege escalation

CVSS 3.0 7.8 HIGHCheck source for fixed versionsCISA KEV

Original advisory

cve-program · CVE-2026-87886

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-87886

Published

Acronis Backup plugin for cPanel & WHM

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Acronis",
                    "product": "Acronis Backup plugin for cPanel & WHM",
                    "platforms": [
                        "Linux"
                    ],
                    "versions": [
                        {
                            "version": "unspecified",
                            "status": "affected",
                            "lessThan": "1.9.3.1021",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Acronis Backup extension for Plesk

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Acronis",
                    "product": "Acronis Backup extension for Plesk",
                    "platforms": [
                        "Linux"
                    ],
                    "versions": [
                        {
                            "version": "unspecified",
                            "status": "affected",
                            "lessThan": "1.8.11.638",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Acronis Backup plugin for DirectAdmin

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Acronis",
                    "product": "Acronis Backup plugin for DirectAdmin",
                    "platforms": [
                        "Linux"
                    ],
                    "versions": [
                        {
                            "version": "unspecified",
                            "status": "affected",
                            "lessThan": "1.2.3.238",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON