Oxygen Builder <= 4.8.2 - Authenticated (Contributor+) Remote Code Execution
Strategic Overview
- Status
- Patched in 4.8.3
- Affected Plugin
- Oxygen Builder
- Affected Version
<= 4.8.2- CVSS
- 8.8High
- Weakness type
- CWE-94 · Improper Control of Generation of Code ('Code Injection')
- CVE
CVE-2024-4662
At a glance
CVE-2024-4662 is a high-severity Improper Control of Generation of Code ('Code Injection') vulnerability in the Oxygen Builder WordPress plugin, affecting versions <= 4.8.2. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Contributor level or above. The issue is fixed in version 4.8.3; sites on affected versions should update now. Disclosed May 2024, reported by Francesco Carlucci.
Vulnerability Overview
The Oxygen Builder plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 4.8.2 via post metadata. This is due to the plugin storing custom data in post metadata without an underscore prefix. This makes it possible for lower privileged users, such as contributors, to inject arbitrary PHP code via the WordPress user interface and gain elevated privileges.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-94: Improper Control of Generation of Code ('Code Injection')
Reaching this weakness in Oxygen Builder <= 4.8.2 takes an account at Contributor level or above. Code injection means input from a request reaches a language construct that evaluates code, so the attacker's text is executed rather than treated as data.
The injected code runs with the web server's privileges, giving the attacker the same access to the database and filesystem as WordPress itself. For Oxygen Builder the fix is 4.8.3: builds <= 4.8.2 are affected, anything from 4.8.3 onward is not.
Remediation
Update to version 4.8.3, or a newer patched version
How does WordSec protect against this?
An attacker needs Contributor access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: Oxygen Builder 4.8.3 closes this, and updating the plugin is the step that ends it.
- Firewall
- Scanner
- Alerts
External References
Related records
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