Public vulnerability disclosure

CVE-2026-4337

Unrestricted Upload of File in PuMuKIT application

publishedCWE-434

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.

Technical severity8.8 highCVSS 4.0 · CNA: INCIBE
Published2026-10-27Source updated 2026-11-04
Collected2026-11-042 attributed sources

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
PuMuKIT
PuMuKIT
current version (affected)
Other versions: affected
CNA: INCIBE

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
4.0 / 8.8
high
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:L/SA:LCNA: INCIBE

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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