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Vulnerability record · CVE-2021-47871 · published 21 January 2026

CVE-2021-47871: Hestia Control Panel 1.3.2 contains an arbitrary file write vulnerability that allows authenticated attackers …

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.

8.6 CVSS 4.0 High EPSS 0.49% · top 60.4% CWE-73 · CWE-73 Deferred
8.6CVSS 4.0 base score
0.49%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/hestiacp/hestiacp
https://hestiacp.com/
https://www.exploit-db.com/exploits/49667
https://www.vulncheck.com/advisories/hestia-control-panel-arbitrary-file-write

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Source: NIST National Vulnerability Database (record CVE-2021-47871), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.