{"id":"CVE-2025-34040","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-34040","generatedAt":"2026-11-02T17:37:20.849Z","title":"An arbitrary file upload vulnerability exists in the Zhiyuan OA platform via the wpsAssistServlet interface.","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.","published":"2025-06-24T02:15:23.000Z","lastModified":"2026-06-17T09:13:22.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":10,"severity":"CRITICAL","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-22","CWE-434"],"affected":[],"epss":{"score":0.15401,"percentile":0.96788,"date":"2026-11-01","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2026-04-06","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":52490,"kind":"exploit","title":"Zhiyuan OA - arbitrary file upload leading","url":"https://www.exploit-db.com/exploits/52490","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/webapps/52490.txt","file":"exploits/multiple/webapps/52490.txt","published":"2026-04-06","added":"2026-04-06","updated":"2026-04-06","author":"Beatriz Fresno Naumova","type":"webapps","platform":"multiple","port":null,"verified":false,"codes":["CVE-2025-34040"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 15.4%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://service.seeyon.com/patchtools/tp.html#/patchList?type=%E5%AE%89%E5%85%A8%E8%A1%A5%E4%B8%81&id=1","source":"disclosure@vulncheck.com"},{"url":"https://vulncheck.com/advisories/zhiyuan-oa-system-path-traversal-file-upload","source":"disclosure@vulncheck.com"},{"url":"https://www.cnblogs.com/pursue-security/p/17677130.html","source":"disclosure@vulncheck.com"},{"url":"https://www.cnvd.org.cn/flaw/show/CNVD-2021-01627","source":"disclosure@vulncheck.com"},{"url":"https://www.exploit-db.com/exploits/52490","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-34040","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}