Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in formidable - CVE-2025-46653
Published: October 17, 2025
Vulnerability identifier: #VU117334
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-46653
CWE-ID: CWE-338
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Charlike Mike Reagent
Affected software:
formidable
formidable
Detailed vulnerability description
The vulnerability allows a remote user to modify data on the system.
The vulnerability exists due to Formidable relies on hexoid to prevent guessing of filenames for untrusted executable content; however, hexoid is documented as not "cryptographically secure. A remote user can modify data on the system.
How to mitigate CVE-2025-46653
Install updates from vendor's website.
Sources
- https://github.com/node-formidable/formidable/blob/d0fbec13edc8add54a1afb9ce1a8d3db803f8d47/CHANGELOG.md?plain=1#L10
- https://github.com/node-formidable/formidable/commit/022c2c5577dfe14d2947f10909d81b03b6070bf5
- https://github.com/zast-ai/vulnerability-reports/blob/main/formidable/file_upload/report.md