Path Traversal in Jeesite

CVE-2026-3405

A vulnerability has been found in thinkgem JeeSite up to 5.15.1. The affected element is an unknown function of the component Connection Handler. The manipulation leads to path traversal. It is possible to initiate the attack remotely. The attack is considered to have high complexity. The exploitability is described as difficult. 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.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.006 (44.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.1 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-3405?
CVE-2026-3405 is a low-severity vulnerability in Jeesite, classified under Path Traversal. CVSS score: 3.1/10. Published 2026-03-02.
How severe is CVE-2026-3405?
Low severity. CVSS v3 base score is 3.1 out of 10.