CVE intelligence and bounded remediation

CVE-2025-0471 — Unrestricted file upload vulnerability in the PMB platform, affecting versions 4.0.10 and above

Critical CVSS 9.9

Unrestricted file upload vulnerability in the PMB platform, affecting versions 4.0.10 and above. This vulnerability could allow an attacker to upload a file to gain remote access to the machine, being able to access, modify and execute commands freely.

Severity
Critical
CVSS
9.9 (3.1)
Published
2025-01-16
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-434

Affected products

  • sigb / pmb

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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