What is CVE-2023-6635?

CVE-2023-6635 is a high-severity vulnerability in Extendify Editorskit, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2024-02-05.

How severe is CVE-2023-6635?

High severity. CVSS v3 base score is 7.2 out of 10.

Is CVE-2023-6635 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Arbitrary file upload in Extendify Editorskit

CVE-2023-6635

The EditorsKit plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation on the 'import_styles' function in versions up to, and including, 1.40.3. This makes it possible for authenticated attackers with administrator-level capabilities or above, to upload arbitrary files on the affected site's server which may make remote code execution possible.

Vulnerability class: Unrestricted File Upload

EPSS: 0.015 (72.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Extendify Editorskit
Munirkamal Gutenberg Block Editor Toolkit – Editorskit — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Public proof-of-concept exploits

20142995/nuclei-templates

References

security@wordfence.com (Third Party Advisory)
security@wordfence.com (Issue Tracking)
security@wordfence.com (Patch)

Frequently asked questions

What is CVE-2023-6635?: CVE-2023-6635 is a high-severity vulnerability in Extendify Editorskit, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2024-02-05.
How severe is CVE-2023-6635?: High severity. CVSS v3 base score is 7.2 out of 10.
Is CVE-2023-6635 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.