SB2026080551 - Code Injection in Hestia Control Panel

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Main Vulnerability Database SB2026080551

SB2026080551 - Code Injection in Hestia Control Panel

Published: August 5, 2026

Security Bulletin ID SB2026080551
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Code Injection (CVE-ID: N/A)

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote user to execute arbitrary code as root.

The vulnerability exists due to improper control of code generation in v-update-user-backup-exclusions and source_conf() when processing crafted backup exclusion input. A remote user can send a specially crafted POST request containing newline-separated KEY=VALUE data to execute arbitrary code as root.

No user interaction is required beyond submitting the save request.


Remediation

Install update from vendor's website.

References