CVE-2023-4243 json
FULL - Customer <= 2.2.3 - Authenticated(Subscriber+) Improper Authorization to Arbitrary Plugin Installation
published 2023-08-09 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-54114
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.9%
- EPSS 0.9% chance of exploitation in 30 days, percentile 59%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 21 mo ago
Exploit prediction
0.90% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- fullservices FULL – Cliente
Classification
- Weakness
- Technology feeds
References
-
wordfence.com
/threat-intel/vulnerabilities/id/9799df3f-e34e-42a7-8a72-fa57682f7014?source=cve
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/PluginInstallation.php
product
- plugins.trac.wordpress.org /browser/full-customer/tags/2.3/app/api/Controller.php?rev=2951561
Sources
- CVE List CVE-2023-4243
- NVD CVE-2023-4243
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.