CVE-2025-34040

Seeyon Zhiyuan OA System Path Traversal File Upload

State: Published
Severity: 10.0 Critical
Published: Jun 24, 2025
Updated: May 14, 2026
Reserved: Apr 15, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	10.0 Critical	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	VulnCheck

Weaknesses

CWE-434 Unrestricted Upload of File with Dangerous Type
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

Product	Versions
Zhiyuan OA Web Application SystemSeeyon (Beijing Zhiyuan Internet Software Co., Ltd.)	5.0Affected 5.1 through 5.6sp1Affected 6.0 through 6.1sp2Affected 7.0Affected 7.0sp1 through 7.1Affected 7.1sp1Affected 8.0 through 8.0sp2Affected

References

https://service.seeyon.com/patchtools/tp.html#/patchList?type=%E5%AE%89%E5%85%A8%E8%A1%A5%E4%B8%81&id=1vendor-advisorypatch
https://www.cnblogs.com/pursue-security/p/17677130.htmlexploittechnical-description
https://www.cnvd.org.cn/flaw/show/CNVD-2021-01627third-party-advisory
https://vulncheck.com/advisories/zhiyuan-oa-system-path-traversal-file-uploadthird-party-advisory
https://www.exploit-db.com/exploits/52490

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