CVE-2026-86239CWE-284CWE-434broken-access-controlunrestricted-file-upload

CVE-2026-86239

Medium · published September 7, 2026

CVSS v3.1
5.3
EPSS
1%
Percentile
44.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
EPSS
0.00532 · 44.1th percentile
Weaknesses
CWE-284 · Improper Access Control; CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2026-09-07T06:17Z
References (6)
https://github.com/liufee/cms/issues/94 · [email protected]https://github.com/yang5ynag/cve/blob/main/FEHI-001-UEditor-Unauthorized-File-Upload.md · [email protected]https://vuldb.com/cve/CVE-2026-86239 · [email protected]https://vuldb.com/submit/901833 · [email protected]https://vuldb.com/vuln/399396 · [email protected]https://vuldb.com/vuln/399396/cti · [email protected]
EPSS history
Timeline
  • 08 SEP 03:24Z
    EPSS moved — → 1%
    epss
  • 07 SEP 00:45Z
    liufee FeehiCMS UEditor Widget UeditorAction.php init unrestricted upload
    cvelistv5