CVE intelligence and bounded remediation

CVE-2022-0679 — Narnoo Distributor Project Narnoo Distributor security vulnerability

Critical CVSS 9.8

The Narnoo Distributor WordPress plugin through 2.5.1 fails to validate and sanitize the lib_path parameter before it is passed into a call to require() via the narnoo_distributor_lib_request AJAX action (available to both unauthenticated and authenticated users) which results in the disclosure of arbitrary files as the content of the file is then displayed in the response as JSON data. This could also lead to RCE with various tricks but depends on the underlying system and it's configuration.

Severity
Critical
CVSS
9.8 (3.1)
Published
2022-03-28
CISA KEV
Not currently listed
Ecosystem
php/wordpress
Weaknesses
CWE-22

Affected products

  • narnoo_distributor_project / narnoo_distributor

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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