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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.57%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 4.0
- 8.6 HIGHCVSS: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/M
- EPSS
- 0.57% probability · 47th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-863
- Source
- disclosure@vulncheck.com
EPSS moved from 0.6% on 17 October 2026 to 0.6% on 26 October 2026.
References
- https://github.com/hestiacp/hestiacp/blob/1.10.4/web/add/cron/index.php#L11-L70
- https://github.com/hestiacp/hestiacp/blob/1.10.4/web/inc/policies.php#L3-L14
- https://github.com/hestiacp/hestiacp/commit/1af7e057cd5ad2ea945acba6c9932ea1a1802c24
- https://github.com/hestiacp/hestiacp/releases/tag/1.10.5
- https://github.com/hestiacp/hestiacp/security/advisories/GHSA-vp7q-fjv5-5vg8
- https://www.vulncheck.com/advisories/hestiacp-before-1.10.5-protected-admin-bypass-via-cron-job-creation
- https://github.com/hestiacp/hestiacp/security/advisories/GHSA-vp7q-fjv5-5vg8
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.