CVE-2023-46818
Published: 27 October 2023
Summary
CVE-2023-46818 is a high-severity Code Injection (CWE-94) vulnerability in Ispconfig Ispconfig. Its CVSS base score is 7.2 (High).
Operationally, ranked in the top 0.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2023-46818 affects ISPConfig versions prior to 3.2.11p1 and stems from insufficient input validation in the language file editor. When the admin_allow_langedit setting is enabled, an authenticated administrator can inject arbitrary PHP code through that interface, corresponding to CWE-94.
An attacker with administrative credentials and the language-edit permission can supply crafted input that is written to disk and later executed by the PHP interpreter. Successful exploitation grants the attacker the ability to read, modify, or delete arbitrary data and to execute code with the privileges of the web server process, producing a CVSS 7.2 impact on confidentiality, integrity, and availability.
The official ISPConfig advisory and release notes for version 3.2.11p1 describe the corrective changes and recommend immediate upgrade for any installation that has admin_allow_langedit enabled. Public exploit code and detailed reproduction steps have been published on Packet Storm and the Full Disclosure mailing list.
The associated EPSS score remains near its observed peak of 0.9062, indicating sustained exploitation interest after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-50984
Vulnerability details
An issue was discovered in ISPConfig before 3.2.11p1. PHP code injection can be achieved in the language file editor by an admin if admin_allow_langedit is enabled.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Makes persistent code injection into loaded programs impossible when the executable image itself resides on hardware-protected read-only media.
Dynamically generated code can be produced and executed inside the isolated chamber, preventing host compromise from code-injection payloads.
Validates inputs used in dynamic code generation to block injected directives.
Directly prevents execution of attacker-supplied code written into data memory regions.