CVE-2022-25299: Cesanta Mongoose

High severity, CVSS 7.5. EPSS: 1.4% chance of exploitation in the next 30 days.

This affects the package cesanta/mongoose before 7.6. The unsafe handling of file names during upload using mg_http_upload() method may enable attackers to write files to arbitrary locations outside the designated target folder.

Affected products

• Cesanta Mongoose: before 7.6 (fixed in 7.6)

Published 2022-02-18. Last modified 2026-06-17.