High severity · published Oct 27, 2026
CVE-2026-4337
Unrestricted Upload of File in PuMuKIT application
New
8.8
CVSS
–
EPSS
No
On KEV
Description
Unrestricted Upload of File with Dangerous Type vulnerability in the PuMuKIT application allows a unauthenticated user to upload any type of file to the server, and to any path where the web server user has write permissions. This could also allow them to delete files.
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PU
PuMuKIT · PuMuKIT
current version · source: vendor
