EUVD-2025-210452
GHSA-5c2f-7vp3-pm3x
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization OS command sanitization, avoid shell exec
MITRE ATT&CK
2 techniques across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
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Alert meAnalysisAIv1 – Jul 10, 2026
Privilege escalation to root in the HestiaCP web hosting control panel (versions before 1.9.5) lets any low-privilege authenticated user run arbitrary OS commands as root by injecting a single-quote into an unvalidated DNS record type field. The flaw chains weak input validation in is_dns_record_format_valid() with unsafe eval-based zone parsing in update_domain_zone(), turning a routine DNS record creation into full host takeover. No public exploit is identified at time of analysis, but VulnCheck has published a detailed advisory and the vendor shipped a fix in 1.9.5.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
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
Primary rating from Vendor (VulnCheck) · only source for this CVE.
CVSS VectorVendor: VulnCheck
DescriptionCVE.org
HestiaCP before 1.9.5 contains an authenticated OS command injection vulnerability that allows low-privilege authenticated users to execute arbitrary commands as root by injecting a single-quote character into unvalidated DNS record types. Attackers can exploit insufficient input validation in is_dns_record_format_valid() combined with unsafe eval-based parsing in update_domain_zone() to prematurely close a variable assignment string and achieve full root code execution on the underlying host in a single DNS record creation step.
Executive ViewAI
HestiaCP versions prior to 1.9.5 allow any authenticated control panel user to escalate privileges to root through DNS record injection, enabling complete host takeover. Organizations running affected HestiaCP instances risk service disruption, unauthorized data access across all hosted domains, and loss of operational control. The vulnerability requires minimal effort to exploit and directly threatens business continuity for hosting providers and their customers.
Within 24 hours: Inventory all HestiaCP deployments and identify instances running versions before 1.9.5; assess active control panel user base. Within 7 days: Apply vendor patch to upgrade all affected instances to HestiaCP 1.9.5 or later; if patching cannot be completed, restrict control panel access to essential administrators only. Within 30 days: Confirm patch deployment across all production systems, audit DNS record modification logs for suspicious activity, and validate no unauthorized root-level access occurred during vulnerability window.
Apply vendor patch. If patching is delayed: restrict control panel user access to administrators only, enable detailed audit logging on all DNS record changes and privilege escalation attempts, isolate affected HestiaCP instances from non-essential network segments, and implement monitoring for unexpected root-level process spawning from web server processes.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
VulDB
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
OS command injection occurs when an application passes unsanitized user input directly into system shell commands.
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
hestiacp is vulnerable to Use of Wrong Operator in String Comparison. Rated critical severity (CVSS 9.8), this vulnerabi
Improper Control of Generation of Code ('Code Injection') in GitHub repository hestiacp/hestiacp prior to 1.6.6. Rated h
OS Command Injection in GitHub repository hestiacp/hestiacp prior to 1.6.5. Rated high severity (CVSS 8.8), this vulnera
Command Injection Vulnerability in GitHub repository hestiacp/hestiacp prior to 1.5.12. Rated high severity (CVSS 8.8),
Authentication security bypass in HestiaCP 1.2.0 through 1.9.4 allows unauthenticated remote attackers to spoof their so
Privilege Chaining in GitHub repository hestiacp/hestiacp prior to 1.8.9. Rated high severity (CVSS 7.8), this vulnerabi
Incorrect Privilege Assignment in GitHub repository hestiacp/hestiacp prior to 1.6.6. Rated high severity (CVSS 7.2), th
In the Password Reset Module in VESTA Control Panel through 0.9.8-25 and Hestia Control Panel before 1.1.1, Host header
Cross-site Scripting (XSS) - Reflected in GitHub repository hestiacp/hestiacp prior to 1.8.8. Rated medium severity (CVS
Cross-site Scripting (XSS) - Reflected in GitHub repository hestiacp/hestiacp prior to 1.7.8. Rated medium severity (CVS
Reflected Cross-site Scripting (XSS) Vulnerability in GitHub repository hestiacp/hestiacp prior to 1.5.11. Rated medium
Cross-site Scripting (XSS) - Generic in GitHub repository hestiacp/hestiacp prior to 1.5.9. Rated medium severity (CVSS
Exploit-DB