CVE-2025-1834
Published: 02 March 2025
Summary
CVE-2025-1834 is a medium-severity Improper Access Control (CWE-284) vulnerability in Zframeworks Zz. Its CVSS base score is 6.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 22.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and SI-10 (Information Input Validation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly mitigates unrestricted file upload by validating the 'file' argument in the /resolve endpoint to reject invalid or dangerous inputs.
Prevents exploitation of the vulnerability by restricting classes of dangerous file types and sizes submitted via the manipulated 'file' argument.
Enforces approved access authorizations on the /resolve endpoint to block low-privilege remote attackers from manipulating the file argument for uploads.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Unrestricted arbitrary file upload vulnerability in the public-facing /resolve endpoint enables remote exploitation of a public-facing application (T1190) and facilitates ingress tool transfer (T1105) by allowing attackers to upload any files, including malicious tools or payloads.
NVD Description
A vulnerability, which was classified as critical, was found in zj1983 zz up to 2024-8. This affects an unknown part of the file /resolve. The manipulation of the argument file leads to unrestricted upload. It is possible to initiate the…
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attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Deeper analysisAI
CVE-2025-1834 is a critical vulnerability discovered in zj1983 zz up to version 2024-8, affecting an unknown part of the /resolve file or endpoint. The issue stems from manipulation of the "file" argument, enabling unrestricted file upload. Published on 2025-03-02, it is associated with CWE-284 (Improper Access Control) and CWE-434 (Unrestricted Upload of File with Dangerous Type), with a CVSS 3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).
A remote attacker with low privileges can exploit this vulnerability over the network with low complexity and no user interaction required. Successful exploitation allows limited impacts on confidentiality, integrity, and availability, potentially enabling attackers to upload malicious files that could facilitate further compromise depending on the application's context.
Advisories from VulDB and related GitHub repositories indicate that the exploit has been publicly disclosed and is available for use. The vendor was contacted early regarding the disclosure but provided no response, and no patches or specific mitigations are detailed in the references. Security practitioners should restrict access to the /resolve endpoint and monitor for anomalous file uploads.
Details
- CWE(s)