Vulnerability in Hestia Control Panel
CVE-2021-47871
Hestia Control Panel 1.3.2 contains an arbitrary file write vulnerability that allows authenticated attackers to write files to arbitrary locations using the API index.php endpoint. Attackers can exploit the v-make-tmp-file command to write SSH keys or other content to specific file paths on the server.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (39.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 39.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.005 · change: +0.001
Affected products
- Hestia Control Panel — versions 1.3.3
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/49667 (exploit)
- hestiacp.com/ (product)
- github.com/hestiacp/hestiacp (product)
- www.vulncheck.com/advisories/hestia-control-panel-arbitrary-file-write (third-party-advisory)
Frequently asked questions
- What is CVE-2021-47871?
- CVE-2021-47871 is a high-severity vulnerability in Hestia Control Panel, classified under External Control of File Name or Path. CVSS score: 8.8/10. Published 2026-01-21.
- How severe is CVE-2021-47871?
- High severity. CVSS v3 base score is 8.8 out of 10.