Arbitrary file upload in Incsub Forminator
CVE-2023-6133
The Forminator plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient blacklisting on the 'forminator_allowed_mime_types' function in versions up to, and including, 1.27.0. This makes it possible for authenticated attackers with administrator-level capabilities or above to upload arbitrary files on the affected site's server, but due to the htaccess configuration, remote code cannot be executed.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 59th percentile — 58.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/threat-intel/vulnerabilities/id/13cfa202-ab90-46c0-ab53-00995… (Third Party Advisory)
- plugins.trac.wordpress.org/browser/forminator/tags/1.27.0/library/fields/upload… (Issue Tracking)
- plugins.trac.wordpress.org/browser/forminator/tags/1.27.0/library/fields/upload… (Issue Tracking)
- plugins.trac.wordpress.org/changeset/2995007/forminator/trunk/library/helpers/h… (Patch)
Frequently asked questions
- What is CVE-2023-6133?
- CVE-2023-6133 is a medium-severity vulnerability in Incsub Forminator, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 6.6/10. Published 2023-11-15.
- How severe is CVE-2023-6133?
- Medium severity. CVSS v3 base score is 6.6 out of 10.
- Is CVE-2023-6133 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.