What is CVE-2010-3663?

CVE-2010-3663 is a high-severity vulnerability in TYPO3, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2019-11-04.

How severe is CVE-2010-3663?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in TYPO3

CVE-2010-3663

TYPO3 before 4.1.14, 4.2.x before 4.2.13, 4.3.x before 4.3.4 and 4.4.x before 4.4.1 contains an insecure default value of the variable fileDenyPattern which could allow remote attackers to execute arbitrary code on the backend.

Vulnerability class: Unrestricted File Upload

Published 2019-11-04 · last modified 2026-06-16.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.024 (83.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 83.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.024 · newest: 0.024 · change: 0.000

Affected products

TYPO3

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

security-tracker.debian.org/tracker/CVE-2010-3663 (Third Party Advisory)
bugs.debian.org/cgi-bin/bugreport.cgi (Mailing List, Third Party Advisory)
typo3.org/security/advisory/typo3-sa-2010-012/ (Vendor Advisory)

Frequently asked questions

What is CVE-2010-3663?: CVE-2010-3663 is a high-severity vulnerability in TYPO3, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2019-11-04.
How severe is CVE-2010-3663?: High severity. CVSS v3 base score is 8.8 out of 10.