Path Traversal in Shenzhen Yuanmengyun Technology Co., Ltd. Weiphp
CVE-2025-34045
A path traversal vulnerability exists in WeiPHP 5.0, an open source WeChat public account platform development framework by Shenzhen Yuanmengyun Technology Co., Ltd. The flaw occurs in the picUrl parameter of the /public/index.php/material/Material/_download_imgage endpoint, where insufficient input validation allows unauthenticated remote attackers to perform directory traversal via crafted POST requests. This enables arbitrary file read on the server, potentially exposing sensitive information such as configuration files and source code. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-05 UTC.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.042 (90.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.043 · newest: 0.042 · change: -0.001
Affected products
- Shenzhen Yuanmengyun Technology Co., Ltd. Weiphp — versions 5.0
- Weiphp — versions 5.0
Weakness classification (CWE)
References
- www.cnvd.org.cn/flaw/show/CNVD-2020-68596 (Third Party Advisory, third-party-advisory)
- github.com/projectdiscovery/nuclei-templates/blob/main/http/cnvd/2020/CNVD-2020… (Exploit, exploit)
- vulncheck.com/advisories/weiphp-path-traversal-file-read (Exploit, Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2025-34045?
- CVE-2025-34045 is a high-severity vulnerability in Shenzhen Yuanmengyun Technology Co., Ltd. Weiphp, classified under Path Traversal. CVSS score: 7.5/10. Published 2025-06-26.
- How severe is CVE-2025-34045?
- High severity. CVSS v3 base score is 7.5 out of 10.