CVE-2025-7878
Published: 20 July 2025
Summary
CVE-2025-7878 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 29.5th 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?
The unrestricted file upload vulnerability in the public-facing /common/jsp/upload2.jsp endpoint enables exploitation of public-facing applications (T1190) and directly facilitates uploading tools to the victim environment (T1608.002), as explicitly referenced in the advisory.
NVD Description
A vulnerability, which was classified as critical, was found in Metasoft 美特软件 MetaCRM up to 6.4.2. Affected is an unknown function of the file /common/jsp/upload2.jsp. The manipulation of the argument File leads to unrestricted upload. It is possible to launch…
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the 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-2025-7878 is a critical vulnerability in Metasoft 美特软件 MetaCRM versions up to 6.4.2, affecting an unknown function within the file /common/jsp/upload2.jsp. The flaw enables unrestricted file upload through manipulation of the "File" argument, 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) and was published on 2025-07-20.
The vulnerability is exploitable remotely by an attacker possessing low privileges, requiring no user interaction and low attack complexity. Successful exploitation allows limited impacts on confidentiality, integrity, and availability, primarily through the upload of unrestricted files that could include dangerous types.
Advisories from VulDB and a related GitHub repository indicate the exploit has been publicly disclosed and may be actively used. The vendor was contacted early about the issue but provided no response, with no patches or official mitigations mentioned in available references.
Details
- CWE(s)