CVE-2025-7878
Published: 20 July 2025
Summary
CVE-2025-7878 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 44.4% 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-2025-7878 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.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-22003
Vulnerability details
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.
- CWE(s)
Related Threats
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.
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Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly enforces validation of the File argument in upload2.jsp to block dangerous file types before they are stored.
Enforces access-control policy on the upload function so that only explicitly permitted file operations succeed.
Scans or quarantines uploaded files for malicious content that would otherwise execute after unrestricted upload.