CVE-2026-15509

medium

Description

A vulnerability has been found in Leantime up to 3.8.0. This impacts the function editUser/addUser of the component JSON-RPC Endpoint. The manipulation of the argument role leads to improper authorization. The attack is possible to be carried out remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

References

https://vuldb.com/vuln/377838/cti

https://vuldb.com/vuln/377838

https://vuldb.com/submit/846167

https://vuldb.com/cve/CVE-2026-15509

https://bytium.com/insights/leantime-priv-escalation-vulnerability-low-priv-to-owner

Details

Source: Mitre, NVD

Published: 2026-07-12

Updated: 2026-07-12

Risk Information

CVSS v2

Base Score: 6.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 6.3

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Severity: Medium

CVSS v4

Base Score: 5.3

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Severity: Medium