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.
EPSS: 0.008 (51.7th percentile) — read the EPSS interpretation.
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.
Affected products
- Full Full_-_customer
- Fullservices Full – Cliente — versions 0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Product)
- security@wordfence.com (Product)
- security@wordfence.com
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.