Path Traversal Vulnerability in WeiPHP 5.0 by Shenzhen Yuanmengyun Technology
CVE-2025-34045

8.7HIGH

Key Information:

Vendor

Shenzhen Yuanmengyun Technology Co., Ltd.

Status
WeiPHP
Vendor
CVE Published:
26 June 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-34045?

A path traversal vulnerability exists in WeiPHP 5.0, an open-source framework for WeChat public account development. The vulnerability resides in the picUrl parameter of the /public/index.php/material/Material/_download_imgage endpoint. Due to insufficient input validation, unauthenticated remote attackers can exploit this flaw by sending crafted POST requests, enabling them to traverse directories on the server. This exposure may lead to unauthorized access to sensitive information, including configuration files and source code, thereby posing a significant risk to the integrity and confidentiality of the system.

Affected Version(s)

WeiPHP 5.0

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-2025-34045 - Proof of Concept

References

https://www.cnvd.org.cn/flaw/show/CNVD-2020-68596
third-party-advisory
https://github.com/projectdiscovery/nuclei-templates/blob...
exploit
https://vulncheck.com/advisories/weiphp-path-traversal-fi...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-34045 : Path Traversal Vulnerability in WeiPHP 5.0 by Shenzhen Yuanmengyun Technology