CVE-2026-4337

highpriority · track · 0

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

— EPSS

CVSS 8.8 · high

Is it mine?

0 products

Check your exposure

Who says so?

— sources

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.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v4.08.8highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · cve-coordination@incibe.es

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-434USprimary

affected products

Products and version ranges known to be affected.

No affected products recorded.

sources

Which sources assert this record, and when.

NVD CVE.org MITRE

published 2026-10-27modified 2026-10-27

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+5024 more

references (1) nvd

External citations — patches, advisories, analysis.

https://www.incibe.es/en/incibe-cert/notices/aviso/unrestricted-upload-file-pumukit-application

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