Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://bytium.com/insights/leantime-priv-escalation-vulnerability-low-priv-to-o
- https://vuldb.com/cve/CVE-2026-15509
- https://vuldb.com/submit/846167
- https://vuldb.com/vuln/377838
- https://vuldb.com/vuln/377838/cti
- https://vuldb.com/submit/846167
FAQ
What is CVE-2026-15509?
CVE-2026-15509 is a vulnerability with a CVSS score of 6.3 (MEDIUM). 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 authoriza...
How severe is CVE-2026-15509?
CVE-2026-15509 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-15509?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.