What’s Vulnerable › Vulnerabilities

CVE-2025-34040: Seeyon Zhiyuan OA System Path Traversal File Upload

• Severity: critical (CVSS 10.0 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 15.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-06-24 · updated 2026-06-17
• Weakness: CWE-22

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

• Seeyon (Beijing Zhiyuan Internet Software Co., Ltd.) Zhiyuan OA Web Application System: from 5.1 through 5.6sp1; from 6.0 through 6.1sp2; from 7.0sp1 through 7.1; from 8.0 through 8.0sp2; 5.0, 7.0, 7.1sp1

References

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

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