CVE intelligence and bounded remediation

CVE-2018-14570 — Niushop B2B2C Multi-Business security vulnerability

High CVSS 8.8

A file upload vulnerability in application/shop/controller/member.php in Niushop B2B2C Multi-business basic version V1.11 allows any remote member to upload a .php file to the web server via a profile avatar field, by using an image Content-Type (e.g., image/jpeg) with a modified filename and file content. This results in arbitrary code execution by requesting that .php file.

Severity
High
CVSS
8.8 (3.0)
Published
2018-07-23
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-434

Affected products

  • niushop / b2b2c_multi-business / 1.11

Matched remediation archetype

Path traversal, unsafe upload, and file handling

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Check exposure

  • Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
  • Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
  • Review canonicalization and containment checks across supported operating systems and storage backends.

Remediate safely

  • Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
  • Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
  • Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.

Authoritative sources

Complete CVE record and remediation plan

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