Auth bypass in Leantime
CVE-2026-92772
Leantime before 3.9.6 contains an authorization bypass vulnerability in the HTMX plugin install endpoint that lacks permission validation. Authenticated users with limited roles can install marketplace plugins and control arbitrary properties including identifier, version, and license key to deploy malicious plugins.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.
EPSS exploit prediction
EPSS: 0.005 (44.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.7% 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/Leantime/leantime/issues/3757 (issue-tracking)
- github.com/Leantime/leantime (product)
- github.com/Leantime/leantime/blob/v3.9.5/app/Domain/Plugins/Hxcontrollers/Detai… (technical-description)
- github.com/Leantime/leantime/blob/v3.9.5/app/Domain/Plugins/Controllers/Marketp… (technical-description)
- github.com/Leantime/leantime/blob/v3.9.5/app/Domain/Plugins/Services/Plugins.php (technical-description)
- github.com/Leantime/leantime/blob/v3.9.6/app/Domain/Plugins/Hxcontrollers/Detai… (patch)
- www.vulncheck.com/advisories/leantime-before-3.9.6-unauthorized-plugin-installa… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-92772?
- CVE-2026-92772 is a high-severity vulnerability in Leantime, classified under Missing Authorization. CVSS score: 7.1/10. Published 2026-09-16.
- How severe is CVE-2026-92772?
- High severity. CVSS v3 base score is 7.1 out of 10.