What is CVE-2011-4904?

CVE-2011-4904 is a medium-severity vulnerability in TYPO3, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2019-11-06.

How severe is CVE-2011-4904?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Improper input validation in TYPO3

CVE-2011-4904

TYPO3 before 4.4.9 and 4.5.x before 4.5.4 does not apply proper access control on ExtDirect calls which allows remote attackers to retrieve ExtDirect endpoint services.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

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

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.011 (65.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000

Affected products

TYPO3 — versions before 4.5.4

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

security-tracker.debian.org/tracker/CVE-2011-4904 (Third Party Advisory)
typo3.org/security/advisory/typo3-core-sa-2011-001/ (Vendor Advisory)

Frequently asked questions

What is CVE-2011-4904?: CVE-2011-4904 is a medium-severity vulnerability in TYPO3, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2019-11-06.
How severe is CVE-2011-4904?: Medium severity. CVSS v3 base score is 6.5 out of 10.