#VU113173 Use of insufficiently random values in form-data - CVE-2025-7783
Published: July 23, 2025 / Updated: August 15, 2025
Vulnerability identifier: #VU113173
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2025-7783
CWE-ID: CWE-330
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
form-data
form-data
Software vendor:
FormData
FormData
Description
The vulnerability allows a remote attacker to perform parameter injection attacks.
The vulnerability exists due to software uses a weak Math.random() method to generated random values for multipart form-encoded data. A remote attacker can observe values produced by Math.random in the target application and predict the random number used to generate form-data's boundary value and inject arbitrary parameters into requests.
Remediation
Install updates from vendor's website.