CVE-2025-30007 hestiacp CVE debrief

Who should care

System administrators and security teams responsible for HestiaCP installations, especially those with low-privilege user accounts, should prioritize patching to version 1.9.5 or later.

Technical summary

The CVE-2025-30007 vulnerability in HestiaCP allows low-privilege authenticated users to execute arbitrary OS commands as root. This is achieved by injecting a single-quote character into unvalidated DNS record types, which, when processed, prematurely close a variable assignment string. The vulnerability is caused by insufficient input validation in the is_dns_record_format_valid() function and unsafe eval-based parsing in the update_domain_zone() function. Successful exploitation requires user interaction, as the attacker must be authenticated, albeit with low privileges.

Defensive priority

High

Recommended defensive actions

• Apply the patch: Upgrade HestiaCP to version 1.9.5 or later.
• Restrict access: Limit access to DNS record management features to only necessary personnel.
• Monitor activity: Regularly review logs for suspicious DNS record creation attempts.
• Inventory check: Verify all HestiaCP installations and their current versions.
• Exception tracking: Implement a process to track and address any exceptions related to DNS record management.

Evidence notes

The CVE record was published on 2026-07-10T19:17:18.130Z and was last modified on 2026-07-10T19:21:09.530Z. The NVD entry is currently Undergoing Analysis. The vulnerability was disclosed by Vulncheck, and multiple references are provided, including GitHub commits, a pull request, and a release tag.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.