CVE-2025-7879
Published: 20 July 2025
Summary
CVE-2025-7879 is a low-severity Improper Access Control (CWE-284) vulnerability in Metasoft Metacrm. Its CVSS base score is 2.1 (Low).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 44.0% of CVEs by exploit likelihood; 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).
Deeper analysis
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.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-22002
Vulnerability details
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…
more
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.
- CWE(s)
Related Threats
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.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly enforces access restrictions on the File argument and mobileupload.jsp endpoint to block unauthorized uploads by low-privileged users.
Requires validation of uploaded file types and content to prevent unrestricted dangerous files from being accepted by mobileupload.jsp.
Limits privileges required to invoke the upload function, reducing the attack surface for remote exploitation of the vulnerable JSP.