Cross-Site Scripting Vulnerability in YiFang CMS from YiFang Technology
CVE-2026-3742

5.1MEDIUM

Key Information:

Vendor

Yifang

Status
Cms
Vendor
CVE Published:
8 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-3742?

A vulnerability has been identified in YiFang CMS version 2.0.5, specifically within the 'update' function of the file 'app/db/admin/D_singlePage.php'. By manipulating the 'Title' argument, an attacker can execute cross-site scripting (XSS) attacks remotely. This flaw can lead to unauthorized actions on behalf of users and potentially expose sensitive data. The exploit is publicly available, and although attempts were made to communicate this issue to the vendor, there has been no response.

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-2026-3742 - Proof of Concept

References

https://vuldb.com/?id.349720
vdb-entrytechnical-description
https://vuldb.com/?ctiid.349720
signaturepermissions-required
https://vuldb.com/?submit.767847
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
.