CVE-2025-34040
High PUBLISHEDSeeyon Zhiyuan OA System Path Traversal File Upload
Not yet in CISA KEV
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
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.
- CVE Published
- Jun 24, 2025
- Exploitation Reported
- Jun 24, 2025
- CVSS
- 10.0 Critical
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Seeyon (Beijing Zhiyuan Internet Software Co., Ltd.) |
Zhiyuan OA Web Application System
|
5.0 |
Affected |
| Seeyon (Beijing Zhiyuan Internet Software Co., Ltd.) |
Zhiyuan OA Web Application System
|
5.1 to <= 5.6sp1 |
Affected |
| Seeyon (Beijing Zhiyuan Internet Software Co., Ltd.) |
Zhiyuan OA Web Application System
|
6.0 to <= 6.1sp2 |
Affected |
| Seeyon (Beijing Zhiyuan Internet Software Co., Ltd.) |
Zhiyuan OA Web Application System
|
7.0 |
Affected |
| Seeyon (Beijing Zhiyuan Internet Software Co., Ltd.) |
Zhiyuan OA Web Application System
|
7.0sp1 to <= 7.1 |
Affected |
| Seeyon (Beijing Zhiyuan Internet Software Co., Ltd.) |
Zhiyuan OA Web Application System
|
7.1sp1 |
Affected |
| Seeyon (Beijing Zhiyuan Internet Software Co., Ltd.) |
Zhiyuan OA Web Application System
|
8.0 to <= 8.0sp2 |
Affected |
CVE References
- Vendor Advisory — service.seeyon.com service.seeyon.com · Vendor Advisory https://service.seeyon.com/patchtools/tp.html#/patchList?type=%E5%AE%...
- Third-Party Advisory — cnvd.org.cn cnvd.org.cn · Third-Party Advisory https://www.cnvd.org.cn/flaw/show/CNVD-2021-01627
- Third-Party Advisory — vulncheck.com vulncheck.com · Third-Party Advisory https://vulncheck.com/advisories/zhiyuan-oa-system-path-traversal-fil...
- Exploit — cnblogs.com cnblogs.com · Exploit https://www.cnblogs.com/pursue-security/p/17677130.html
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| The Shadowserver First | 2025-06-24 01:12 UTC |
Scanner Artifacts
Nuclei and Metasploit references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-34040.yaml | Jun 01, 2026 |
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
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
Exploitation Status
Exploited in the wild
Recorded 2025-06-24 01:12:22 UTC · The Shadowserver
Proof of concept available
Recorded 2026-06-12 14:21:06 UTC · Nuclei Templates
Weaknesses (CWE)
-
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
-
Unrestricted Upload of File with Dangerous Type
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Nuclei | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-34040.yaml | Jun 01, 2026 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
nuclei · Created Unknown
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
14:21 UTC about 1 month ago14:21 UTC · about 1 month ago
Public PoC available
Public proof-of-concept code published
-
15:34 UTC about 1 month ago15:34 UTC · about 1 month ago
Nuclei template available
Scanner coverage available
-
01:12 UTC about 1 year ago01:12 UTC · about 1 year ago
CVE published
Vulnerability disclosed publicly
-
01:12 UTC about 1 year ago01:12 UTC · about 1 year ago
Added to KEVIntel KEV Feed
High-confidence, third-party attested exploitation
-
19:15 UTC about 1 year ago19:15 UTC · about 1 year ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2025-34040
{
"cve_id": "CVE-2025-34040",
"title": "Seeyon Zhiyuan OA System Path Traversal File Upload",
"affected_vendor": "Seeyon (Beijing Zhiyuan Internet Software Co., Ltd.)",
"affected_product": "Zhiyuan OA Web Application System",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "High",
"cvss_score": 10.0,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}