CVE intelligence and bounded remediation

CVE-2021-24549 — Aceide Project Aceide security vulnerability

Medium CVSS 4.9

The AceIDE WordPress plugin through 2.6.2 does not sanitise or validate the user input which is appended to system paths before using it in various actions, such as to read arbitrary files from the server. This allows high privilege users such as administrator to access any file on the web server outside of the blog directory via a path traversal attack.

Severity
Medium
CVSS
4.9 (3.1)
Published
2021-08-23
CISA KEV
Not currently listed
Ecosystem
php/wordpress
Weaknesses
CWE-22

Affected products

  • aceide_project / aceide

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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