Auth bypass in Gamonoid Icehrm
CVE-2026-91770
IceHRM before 36.0.0 fails to validate employee ownership on seven REST sub-resource endpoints, allowing authenticated employees to read any colleague's HR records. Attackers can substitute arbitrary employee IDs in skill, education, certification, language, leave, attendance, and status endpoints to access sensitive personnel data.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (39.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 39.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/gamonoid/icehrm/issues/375 (issue-tracking)
- github.com/gamonoid/icehrm/commit/19674f29a0591c985712dc4a5c841e21d7dbf971 (patch)
- github.com/gamonoid/icehrm/releases/tag/v36.0.0 (release-notes)
- github.com/gamonoid/icehrm/blob/e75ed7e45de41f7b2b3ea319d9406514afa2bf29/core/s… (technical-description)
- github.com/gamonoid/icehrm (product)
- www.vulncheck.com/advisories/icehrm-before-36.0.0-broken-access-control-via-emp… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-91770?
- CVE-2026-91770 is a medium-severity vulnerability in Gamonoid Icehrm, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 6.5/10. Published 2026-09-15.
- How severe is CVE-2026-91770?
- Medium severity. CVSS v3 base score is 6.5 out of 10.