CVE intelligence and bounded remediation
CVE-2022-4101 — Images Optimize And Upload Cf7 Project Images Optimize And Upload Cf7 security vulnerability
Critical
CVSS 9.1
The Images Optimize and Upload CF7 WordPress plugin through 2.1.4 does not validate the file to be deleted via an AJAX action available to unauthenticated users, which could allow them to delete arbitrary files on the server via path traversal attack.
- Severity
- Critical
- CVSS
- 9.1 (3.1)
- Published
- 2023-01-16
- CISA KEV
- Not currently listed
- Ecosystem
- php/wordpress
Affected products
- images_optimize_and_upload_cf7_project / images_optimize_and_upload_cf7
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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