CVE-2022-27115
Published: 11 April 2022
Summary
CVE-2022-27115 is a critical-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Std42 Elfinder. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 5.3% 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-2022-27115 is an unrestricted file upload vulnerability in Studio-42 elFinder 2.1.60 that permits remote code execution by bypassing filename restrictions during upload operations. The issue is tracked as CWE-434 and received a CVSS 3.1 base score of 9.8 reflecting network attackability without authentication or user interaction.
An unauthenticated attacker with network access can upload a file whose name evades the intended filters, resulting in arbitrary code execution on the server and full impact to confidentiality, integrity, and availability of the affected system.
The EPSS score for this CVE stands at 0.1478 with no material rise from a lower baseline.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-1650
Vulnerability details
In Studio-42 elFinder 2.1.60, there is a vulnerability that causes remote code execution through file name bypass for file upload.
- 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.