CVE-2025-7879
Published: 20 July 2025
Summary
CVE-2025-7879 is a medium-severity Improper Access Control (CWE-284) vulnerability in Metasoft Metacrm. 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 29.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
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.
This control enforces ownership-based restrictions on portable storage device use, directly implementing access control over media insertion into organizational systems.
Hardware write-protect enforces access control on critical resources (e.g., firmware) independent of software state.
The access control policy and procedures directly mandate and enforce proper access control mechanisms across the organization.
Device lock enforces restricted access until re-authentication, directly reducing unauthorized use of active sessions.
Supervision and review of access control activities directly detects and remediates improper access configurations or usages.
Explicitly identifying and documenting actions permitted without identification or authentication enforces proper access control boundaries by defining justified exceptions.
By automatically labeling outputs with security attributes, the control supports attribute-based enforcement and reduces exploitability of improper access control weaknesses.
Associating and retaining security attributes with data directly supports enforcement of access control decisions across storage, processing, and transmission.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Unrestricted file upload in public-facing MetaCRM web application (mobileupload.jsp) enables exploitation of public-facing applications (T1190) and staging tools via upload (T1608.002) as noted in advisories.
NVD Description
A vulnerability has been found in Metasoft 美特软件 MetaCRM up to 6.4.2 and classified as critical. Affected by this vulnerability is an unknown functionality of the file mobileupload.jsp. The manipulation of the argument File leads to unrestricted upload. The attack…
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can be launched 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-2025-7879 is a critical vulnerability in Metasoft 美特软件 MetaCRM versions up to 6.4.2, affecting an unknown functionality within the mobileupload.jsp file. The issue stems from manipulation of the "File" argument, enabling unrestricted file upload. Classified under CWE-284 (Improper Access Control) and CWE-434 (Unrestricted Upload of File with Dangerous Type), it carries a CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L). The vulnerability was published on 2025-07-20.
Attackers with low privileges (PR:L) and network access (AV:N) can exploit this remotely with low complexity and no user interaction required. By manipulating the File argument in mobileupload.jsp, they achieve low impacts on confidentiality, integrity, and availability (C:L/I:L/A:L), potentially uploading malicious files that could lead to further compromise depending on server configuration.
Advisories from VulDB and referenced GitHub repositories indicate the exploit has been publicly disclosed and is available for use, with proof-of-concept details in repositories like FightingLzn9/vul. The vendor was contacted early regarding disclosure but has not responded or issued patches, leaving affected systems without official mitigations. Security practitioners should restrict access to mobileupload.jsp and monitor uploads until remediation is available.
Details
- CWE(s)