Path Traversal in Seeyon (Beijing Zhiyuan Internet Software Co., Ltd.) Oa Web Application System
CVE-2025-34040
An arbitrary file upload vulnerability exists in the Zhiyuan OA platform via the wpsAssistServlet interface. The realFileType and fileId parameters are improperly validated during multipart file uploads, allowing unauthenticated attackers to upload crafted JSP files outside of intended directories using path traversal. Successful exploitation enables remote code execution as the uploaded file can be accessed and executed through the web server. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-01 UTC.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
EPSS exploit prediction
EPSS: 0.154 (96.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 96.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.148 · newest: 0.154 · change: +0.006
Affected products
- Seeyon (Beijing Zhiyuan Internet Software Co., Ltd.) Oa Web Application System — versions 5.0, 5.1, 6.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- service.seeyon.com/patchtools/tp.html (vendor-advisory, patch)
- www.cnblogs.com/pursue-security/p/17677130.html (technical-description, exploit)
- www.cnvd.org.cn/flaw/show/CNVD-2021-01627 (third-party-advisory)
- vulncheck.com/advisories/zhiyuan-oa-system-path-traversal-file-upload (third-party-advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2025-34040?
- CVE-2025-34040 is a vulnerability in Seeyon (Beijing Zhiyuan Internet Software Co., Ltd.) Oa Web Application System, classified under Path Traversal. Published 2025-06-24.
- Is CVE-2025-34040 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.