CVE-2022-39036
Published: 10 November 2022
Summary
CVE-2022-39036 is a critical-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Flowring Agentflow. Its CVSS base score is 9.8 (Critical).
Operationally, ranked in the top 9.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The vulnerability CVE-2022-39036 affects the file upload function in Agentflow BPM, where insufficient filtering of special characters in URLs allows unrestricted file uploads. This corresponds to CWE-434 and carries a CVSS 3.1 score of 9.8, reflecting network-accessible exploitation without authentication or user interaction.
An unauthenticated remote attacker can exploit the flaw to upload arbitrary files, execute code on the target system, manipulate data, or disrupt service availability. The attack requires no privileges and can be carried out directly over the network.
Vendor advisories from Flowring and Taiwan's CERT point to patched releases of Agentflow v4.0 and v3.7 that address the file-upload filtering issue; organizations are advised to apply these updates to remediate the exposure. The associated EPSS score has remained flat at 0.0610 with no observed rise after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-41582
Vulnerability details
The file upload function of Agentflow BPM has insufficient filtering for special characters in URLs. An unauthenticated remote attacker can exploit this vulnerability to upload arbitrary file and execute arbitrary code to manipulate system or disrupt service.
- 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.