CVE-2023-47129
Published: 10 November 2023
Summary
CVE-2023-47129 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Statamic Statamic. Its CVSS base score is 8.3 (High).
Operationally, ranked in the top 9.1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Statamic, a core Laravel-based content management system distributed as a Composer package, is affected by an unrestricted file upload vulnerability in versions prior to 3.4.13 and 4.33.0. The flaw resides in the Forms feature and allows PHP files that have been crafted to resemble images to be uploaded through front-end forms containing an asset upload field. It does not impact arbitrary forms or the control panel.
An unauthenticated remote attacker who can reach a vulnerable front-end form can upload a malicious PHP payload. Successful exploitation may lead to arbitrary code execution on the server, with the CVSS vector reflecting high impact across confidentiality, integrity, and availability under conditions of user interaction and network access.
The official GitHub Security Advisory GHSA-72hg-5wr5-rmfc and the associated commits in the Statamic CMS repository recommend immediate upgrade to the patched releases 3.4.13 or 4.33.0. These updates enforce proper validation and filtering of uploaded assets on forms.
The EPSS score has remained flat at 0.0596 with no material increase since disclosure, indicating limited observed exploitation interest to date.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-2902
Vulnerability details
Statmic is a core Laravel content management system Composer package. Prior to versions 3.4.13 and 4.33.0, on front-end forms with an asset upload field, PHP files crafted to look like images may be uploaded. This only affects forms using the…
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"Forms" feature and not just _any_ arbitrary form. This does not affect the control panel. This issue has been patched in 3.4.13 and 4.33.0.
- 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.