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

Quick assessment

Affected
liufee FeehiCMS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Liufee FeehiCMS是Liufee个人开发者的一个内容管理系统。 Liufee FeehiCMS 2.1.1及之前版本存在服务端请求伪造漏洞，该漏洞源于UEditor组件backend/widgets/ueditor/Uploader.php文件中catchImage函数对source[]参数操作不当，可能导致服务端请求伪造。

CVSS 4.7 · Medium EPSS 0.40% · P34

Possible ATT&CK Techniques 1 AI

T1090 · Proxy

Affected Version Matrix 2

VendorProduct Version RangeStatus
liufee FeehiCMS 2.1.0 affected
2.1.1 affected
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I. Basic Information for CVE-2026-86240

Vulnerability Information
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Vulnerability Title
liufee FeehiCMS UEditor Uploader.php catchImage server-side request forgery
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Liufee FeehiCMS 服务端请求伪造漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Liufee FeehiCMS是Liufee个人开发者的一个内容管理系统。 Liufee FeehiCMS 2.1.1及之前版本存在服务端请求伪造漏洞，该漏洞源于UEditor组件backend/widgets/ueditor/Uploader.php文件中catchImage函数对source[]参数操作不当，可能导致服务端请求伪造。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
liufee FeehiCMS 2.1.0 cpe:2.3:a:liufee:feehicms:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-86240

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III. Intelligence Information for CVE-2026-86240

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Proof of Concept for CVE-2026-86240 (2)

News Coverage for CVE-2026-86240 (2)

Other References for CVE-2026-86240 (1)

Same Patch Batch · liufee · 2026-09-07 · 3 CVEs total

CVE-2026-86239 5.3 MEDIUM liufee FeehiCMS UEditor Widget UeditorAction.php init unrestricted upload
CVE-2026-86241 4.3 MEDIUM liufee FeehiCMS Cookie Validation main-local.php hard-coded key

IV. Related Vulnerabilities

Same product: FeehiCMS
Same vendor: liufee
Same weakness: CWE-918