CVE-2025-55383

HIGH
Published Aug 21, 2025 Modified Apr 15, 2026 CWE-434

Description

Moss before v0.15 has a file upload vulnerability. The "upload" function configuration allows attackers to upload files of any extension to any location on the target server.

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CVSS v3.1 Score

8.6
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

Weakness Type (CWE)

CWE-434 Unrestricted Upload

References

Frequently Asked Questions

What is CVE-2025-55383? +
Moss before v0.15 has a file upload vulnerability. The "upload" function configuration allows attackers to upload files of any extension to any location on the target server. It has a CVSS v3.1 base score of 8.6 (HIGH).
How severe is CVE-2025-55383? +
CVE-2025-55383 has a CVSS v3.1 score of 8.6 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
How do I check if I'm vulnerable to CVE-2025-55383? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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