# CVE-2022-4995: CVE-2022-4995

Status: published. Published: 2026-08-07. Updated: 2026-11-10.

Weaver (Fanwei) E-cology 9.0 versions prior to 10.52 contain a file upload vulnerability that allows a remote, unauthenticated attacker to upload arbitrary files, including JSP webshells, by submitting a multipart/form-data POST request to /workrelate/plan/util/uploaderOperate.jsp with arbitrary secId and plandetailid field values. Successful exploitation results in remote code execution under the privileges of the application server process. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-14 (UTC).

## Remediation

No remediation reported in collected sources

## Affected products and versions

Not reported in collected sources.

## Severity and prioritization

- CVSS 4.0: 9.3 (critical); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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; source: NVD: disclosure@vulncheck.com

- CVSS 3.1: 9.8 (critical); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation poc; automatable yes; technical impact total; source NVD SSVC: 134c704f-9b21-4f2e-91b3-4a467353bcc0

- Weaknesses: CWE-434

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://ch0x01e.github.io/post/ecology9-wen-jian-shang-chuan-fen-xi/ (disclosure@vulncheck.com)

- https://cn-sec.com/archives/1208148.html (disclosure@vulncheck.com)

- https://github.com/gmh5225/CVE-2022-HW-POC/blob/main/%E6%B3%9B%E5%BE%AEOA%20uploaderOperate.jsp%20%E6%96%87%E4%BB%B6%E4%B8%8A%E4%BC%A0.md (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/weaver-e-cology-file-upload-rce-via-uploaderoperate-jsp (disclosure@vulncheck.com)

- https://www.weaver.com.cn/cs/ecology_full_log_en.html (disclosure@vulncheck.com)

- https://www.weaver.com.cn/cs/securityDownload.html# (disclosure@vulncheck.com)

## Provenance

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-4995; retrieved 2026-11-10; source updated 2026-11-10

Revision: 76b8a14ba127962263390e6fb86287bef52b06b4d276e9da171df564b2f16b7c

Canonical: https://y2.dev/cve/CVE-2022-4995

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