CVE-2024-7620
Published: 07 September 2024
Summary
CVE-2024-7620 is a medium-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Fastlinemedia Customizer Export\/Import. Its CVSS base score is 6.6 (Medium).
Operationally, ranked in the top 7.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The Customizer Export/Import plugin for WordPress is vulnerable to arbitrary file uploads in all versions through 0.9.7. The flaw is caused by missing file-type validation inside the _import function (CWE-434), allowing an attacker to place any file on the server. The issue received a CVSS 3.1 score of 6.6, reflecting the high attack complexity and the requirement for administrator privileges.
An authenticated administrator can upload a malicious file through the import routine. Because the plugin deletes the uploaded file shortly after creation, successful exploitation also depends on winning a race condition that permits the file to be executed before removal, potentially resulting in remote code execution on the host.
A fix is available in plugin changeset 3144365, which adds the missing validation. The Wordfence advisory linked in the CVE record recommends that site owners update to a patched release as soon as it is published.
EPSS remains flat at 0.0893 with no material increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-48511
Vulnerability details
The Customizer Export/Import plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the '_import' function in all versions up to, and including, 0.9.7. This makes it possible for authenticated attackers, with Administrator-level access…
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and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. NOTE: This vulnerability is only exploitable when used in conjunction with a race condition as the uploaded file is deleted shortly after it is created.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.
Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.
Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.
Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.