Arbitrary file upload in Weaver Network Co., Ltd. E-office
CVE-2022-50993
Weaver (Fanwei) E-office versions prior to 10.0_20221201 contain an unauthenticated arbitrary file upload vulnerability in the OfficeServer.php endpoint that allows remote attackers to upload malicious files by sending multipart POST reque…
Vulnerability class: Unrestricted File Upload
EPSS: 0.003 (54.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Weaver Network Co., Ltd. E-office — versions 0
Weakness classification (CWE)
References
- disclosure@vulncheck.com (release-notes, patch)
- disclosure@vulncheck.com (technical-description, exploit)
- disclosure@vulncheck.com (technical-description, exploit)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2022-50993?
- CVE-2022-50993 is a critical-severity vulnerability in Weaver Network Co., Ltd. E-office, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-04-30.
- How severe is CVE-2022-50993?
- Critical severity. CVSS v3 base score is 9.8 out of 10.