Vulnerability details
CVE-2026-87886
Actively exploited
Acronis Backup extension for PleskAcronis Backup plugin for DirectAdminAcronis Backup plugin for cPanel & WHM
CVSS 3.0
7.8High
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.0 | CVEProject cvelistV5 (CNA) (Acronis) | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Acronis | Acronis Backup extension for Plesk | v < 1.8.11.638 | CVEProject cvelistV5 (CNA) |
| Acronis | Acronis Backup plugin for DirectAdmin | v < 1.2.3.238 | CVEProject cvelistV5 (CNA) |
| Acronis | Acronis Backup plugin for cPanel & WHM | v < 1.9.3.1021 | CVEProject cvelistV5 (CNA) |
References and advisories
2
Kolun on Telegram @kolunsec
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Details
- Published
- 2026-09-18
- Last updated
- 2026-09-18
- State
- Published
- Assigner (CNA)
- Acronis
- Kolun priority
- 65 · High
CISA KEV catalog
- Date added
- 2026-09-16
- Due date
- 2026-09-19
- Used in ransomware
- Unknown
Exploit prediction (EPSS)
0.23%
Probability of exploitation in 30 days
14.2%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Active
- Technical impact
- Total
Weaknesses (CWE)
- CWE-276