Arbitrary file upload in Liufee Feehicms
CVE-2026-86239
A vulnerability was identified in liufee FeehiCMS up to 2.1.1. The impacted element is the function UeditorAction::init of the file backend/widgets/ueditor/UeditorAction.php of the component UEditor Widget. The manipulation leads to unrestricted upload. Remote exploitation of the attack is possible. The exploit is publicly available and might be used. The project was informed of the problem early through an issue report but has not responded yet.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.005 (44.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.1% 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
- Liufee Feehicms — versions 2.1.0, 2.1.1
Weakness classification (CWE)
References
- vuldb.com/vuln/399396 (technical-description, vdb-entry)
- vuldb.com/vuln/399396/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-86239 (third-party-advisory)
- vuldb.com/submit/901833 (third-party-advisory)
- github.com/liufee/cms/issues/94 (issue-tracking)
- github.com/yang5ynag/cve/blob/main/FEHI-001-UEditor-Unauthorized-File-Upload.md (exploit)
Frequently asked questions
- What is CVE-2026-86239?
- CVE-2026-86239 is a medium-severity vulnerability in Liufee Feehicms, classified under Improper Access Control. CVSS score: 5.3/10. Published 2026-09-07.
- How severe is CVE-2026-86239?
- Medium severity. CVSS v3 base score is 5.3 out of 10.