Auth bypass in Full - Customer
CVE-2023-4243
The FULL - Customer plugin for WordPress is vulnerable to Arbitrary File Upload via the /install-plugin REST route in versions up to, and including, 2.2.3 due to improper authorization. This allows authenticated attackers with subscriber-level permissions and above to execute code by installing plugins from arbitrary remote locations including non-repository sources onto the site, granted they are packaged as a valid WordPress plugin.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.009 (58.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.2% 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
- Full - Customer
- Fullservices Full – Cliente — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wordfence.com/threat-intel/vulnerabilities/id/9799df3f-e34e-42a7-8a72-fa576… (Third Party Advisory)
- plugins.trac.wordpress.org/browser/full-customer/tags/1.1.0/app/api/Plugin.php (Product)
- plugins.trac.wordpress.org/browser/full-customer/tags/2.2.1/app/api/PluginInsta… (Product)
- plugins.trac.wordpress.org/browser/full-customer/tags/2.3/app/api/Controller.php
Frequently asked questions
- What is CVE-2023-4243?
- CVE-2023-4243 is a high-severity vulnerability in Full - Customer, classified under Improper Authorization. CVSS score: 8.8/10. Published 2023-08-09.
- How severe is CVE-2023-4243?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2023-4243 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.