What is CVE-2021-41566?

CVE-2021-41566 is a critical-severity vulnerability in Tad Tadtools, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-10-08.

How severe is CVE-2021-41566?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Arbitrary file upload in Tad Tadtools

CVE-2021-41566

The file extension of the TadTools file upload function fails to filter, thus remote attackers can upload any types of files and execute arbitrary code without logging in.

Vulnerability class: Unrestricted File Upload

EPSS: 0.019 (78.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tad Tadtools — versions 0
Tadtools_project Tadtools

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

twcert@cert.org.tw (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-41566?: CVE-2021-41566 is a critical-severity vulnerability in Tad Tadtools, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2021-10-08.
How severe is CVE-2021-41566?: Critical severity. CVSS v3 base score is 9.8 out of 10.