Auth bypass in Hestiacp
CVE-2026-111627
HestiaCP before 1.10.5 contains an authorization bypass vulnerability that allows non-ROOT_USER administrators to perform write actions while impersonating the protected ROOT_USER account. Attackers can log in via the loginas parameter and POST to /add/cron/, because the read-only flag is never checked, causing crond to run their commands as the protected administrator's system account.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/hestiacp/hestiacp/security/advisories/GHSA-vp7q-fjv5-5vg8 (vendor-advisory)
- github.com/hestiacp/hestiacp/blob/1.10.4/web/add/cron/index.php (technical-description)
- github.com/hestiacp/hestiacp/blob/1.10.4/web/inc/policies.php (technical-description)
- github.com/hestiacp/hestiacp/commit/1af7e057cd5ad2ea945acba6c9932ea1a1802c24 (patch)
- github.com/hestiacp/hestiacp/releases/tag/1.10.5 (release-notes)
- www.vulncheck.com/advisories/hestiacp-before-1.10.5-protected-admin-bypass-via-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111627?
- CVE-2026-111627 is a high-severity vulnerability in Hestiacp, classified under Incorrect Authorization. CVSS score: 7.2/10. Published 2026-10-16.
- How severe is CVE-2026-111627?
- High severity. CVSS v3 base score is 7.2 out of 10.