CVE-2023-47873
Published: 26 March 2024
Summary
CVE-2023-47873 is a critical-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Wensolutions Wp Child Theme Generator. Its CVSS base score is 9.1 (Critical).
Operationally, ranked in the top 5.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
CVE-2023-47873 is an unrestricted file upload vulnerability (CWE-434) affecting the WP Child Theme Generator plugin by WEN Solutions for WordPress. The flaw impacts all versions through 1.0.9 and permits an authenticated user to upload files of arbitrary, potentially dangerous types without sufficient server-side validation.
An attacker with administrative privileges can exploit the issue remotely over the network to upload malicious files such as web shells. Successful exploitation grants full control over the affected site, enabling arbitrary code execution, data exfiltration, and persistence with a CVSS score of 9.1 reflecting high impact across confidentiality, integrity, and availability plus a changed scope.
Patchstack advisories document the arbitrary file upload issue in version 1.0.8 and direct administrators to apply vendor updates that remediate the unrestricted upload path. The EPSS score has remained flat at 0.1296 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-51963
Vulnerability details
Unrestricted Upload of File with Dangerous Type vulnerability in WEN Solutions WP Child Theme Generator.This issue affects WP Child Theme Generator: from n/a through 1.0.9.
- 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.
Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.
Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.
Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.
Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.