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Vulnerability record · CVE-2026-92772 · published 16 September 2026

CVE-2026-92772: Missing authorization vulnerability

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.

7.1 CVSS 4.0 High EPSS 0.53% · top 57.6% CWE-862 · Missing authorization Deferred
7.1CVSS 4.0 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
8References
17 Sep 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/Leantime/leantime
https://github.com/Leantime/leantime/blob/v3.9.5/app/Domain/Plugins/Controllers/Marketplace.php#L24
https://github.com/Leantime/leantime/blob/v3.9.5/app/Domain/Plugins/Hxcontrollers/Details.php#L25-L40
https://github.com/Leantime/leantime/blob/v3.9.5/app/Domain/Plugins/Services/Plugins.php#L546-L561
https://github.com/Leantime/leantime/blob/v3.9.6/app/Domain/Plugins/Hxcontrollers/Details.php#L27
https://github.com/Leantime/leantime/issues/3757
https://www.vulncheck.com/advisories/leantime-before-3.9.6-unauthorized-plugin-installation-via-htmx
https://github.com/Leantime/leantime/issues/3757

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Source: NIST National Vulnerability Database (record CVE-2026-92772), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.