CVE-2025-34040 in the critical feed json
Seeyon Zhiyuan OA System Path Traversal File Upload
published 2025-06-24 16 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-19043
- cvss
- 10.0
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 15.4%
- EPSS 15.4% chance of exploitation in 30 days, percentile 96%
- public exploits
- 1
- Exploit-DB, plus a Nuclei check
Summary
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.
Patch / fix
Timeline
- Published
- First public exploit (EDB-52490)
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- total
- Assessed
- 16 mo ago
Exploit prediction
15.40% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- EDB-52490 Zhiyuan OA - arbitrary file upload leading webapps, 2026-04-06
- Nuclei template Zhiyuan OA Platform - Arbitrary File Upload nuclei detection template
- cnblogs.com https://www.cnblogs.com/pursue-security/p/17677130.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 10.0 | 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 |
| CNA | 4.0 | 10.0 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- Seeyon (Beijing Zhiyuan Internet Software Co., Ltd.) Zhiyuan OA Web Application System
Classification
References
-
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
-
cnblogs.com
/pursue-security/p/17677130.html
exploit, technical-description
-
cnvd.org.cn
/flaw/show/CNVD-2021-01627
third-party-advisory
-
vulncheck.com
/advisories/zhiyuan-oa-system-path-traversal-file-upload
third-party-advisory
- exploit-db.com /exploits/52490
Sources
- CVE List CVE-2025-34040
- NVD CVE-2025-34040
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