CVE-2026-86240: liufee FeehiCMS UEditor Uploader.php catchImage server-side request forgery

Severity: medium (CVSS 4.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-07 · updated 2026-09-28
Weakness: CWE-918

Description

A security flaw has been discovered in liufee FeehiCMS up to 2.1.1. This affects the function catchImage of the file backend/widgets/ueditor/Uploader.php of the component UEditor. The manipulation of the argument source[] results in server-side request forgery. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Affected products

liufee FeehiCMS: 2.1.0, 2.1.1

References

https://github.com/liufee/cms/issues/95
https://github.com/yang5ynag/cve/blob/main/FEHI-002-UEditor-catchImage-SSRF.md
https://vuldb.com/cve/CVE-2026-86240
https://vuldb.com/submit/901834
https://vuldb.com/vuln/399397
https://vuldb.com/vuln/399397/cti

Get alerted when CVE-2026-86240 or the next vulnerability affects your stack