Cross-Site Scripting Vulnerability in YiFang CMS by YiFang
CVE-2026-3741

5.1MEDIUM

Key Information:

Vendor

Yifang

Status
Cms
Vendor
CVE Published:
8 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3741?

A critical security vulnerability has been identified in YiFang CMS version 2.0.5, specifically within the 'update' function located in the file app/db/admin/D_friendLink.php. This vulnerability allows an attacker to manipulate the 'linkName' argument, enabling Cross-Site Scripting (XSS) attacks from remote locations. The issue has been publicly disclosed and poses a risk to users of the affected product, as no response has been received from the vendor after the initial disclosure.

Affected Version(s)

CMS 2.0.5

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-3741 - Proof of Concept

References

https://vuldb.com/?id.349719
vdb-entrytechnical-description
https://vuldb.com/?ctiid.349719
signaturepermissions-required
https://vuldb.com/?submit.767273
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

ZZCTD (VulDB User)
VulDB
.