Vulnerability · Published Jun 24, 2025 · Assigned by VulnCheck
CVE-2025-34040Seeyon Zhiyuan OA System Path Traversal File Upload
Critical 10.0
In plain English
A critical-severity unrestricted file upload in Zhiyuan OA Web Application System from Seeyon (Beijing Zhiyuan Internet Software Co., Ltd.). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 15.4% (higher than 97% of all known vulnerabilities). Ready-made attack tooling exists: Nuclei, public proof-of-concept code.
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Seeyon (Beijing Zhiyuan Internet Software Co., Ltd.) | Zhiyuan OA Web Application System | 5.05.1 – through 5.6sp16.0 – through 6.1sp27.07.0sp1 – through 7.17.1sp18.0 – through 8.0sp2 |
Weakness: CWE-434, CWE-22 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
References
- https://service.seeyon.com/patchtools/tp.html#/patchList?type=%E5%AE%89%E5%85%A8%E8%A1%A5%E4%B8%81&id=1 vendor-advisory, patch
- https://www.cnblogs.com/pursue-security/p/17677130.html exploit, technical-description
- https://www.cnvd.org.cn/flaw/show/CNVD-2021-01627 third-party-advisory
- https://vulncheck.com/advisories/zhiyuan-oa-system-path-traversal-file-upload third-party-advisory
- https://www.exploit-db.com/exploits/52490