Cross-Site Scripting Vulnerability in YzmCMS by YzmCMS
CVE-2025-3397

5.3MEDIUM

Key Information:

Vendor
YzmCMS
Status
Yzmcms
Vendor
CVE Published:
8 April 2025

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A cross-site scripting (XSS) vulnerability has been identified in version 7.1 of YzmCMS, specifically in the message.tpl file. The issue stems from inadequate input validation in the 'gourl' argument, which allows attackers to execute scripts remotely. Once exploited, this vulnerability can lead to unauthorized access and manipulation of user data, highlighting significant security concerns for web applications using this version of YzmCMS. Despite the vendor being notified about this vulnerability, no response has been received, making it critical for users to assess their systems and implement corrective measures.

Affected Version(s)

YzmCMS 7.1

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-2025-3397 - Proof of Concept

References

https://vuldb.com/?id.303642
vdb-entrytechnical-description
https://vuldb.com/?ctiid.303642
signaturepermissions-required
https://vuldb.com/?submit.525203
third-party-advisory

CVSS V4

Score:
5.3
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

sjdalu (VulDB User)
.