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Fencer Intel
critical 9.8

CVE-2011-4628 json

Typo3 Authentication Bypass

published 2019-11-06 7 y ago modified 2026-06-16 4 mo ago also GHSA-79gv-5cgx-x6rx , EUVD-2022-1663

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

TYPO3 before 4.3.12, 4.4.x before 4.4.9, and 4.5.x before 4.5.4 allows remote attackers to bypass authentication mechanisms in the backend through a crafted request.

Patch / fix

  • packagist typo3/cms 4.3.12, 4.4.9, 4.5.4
  • typo3 typo3 4.3.12, 4.4.9, 4.5.4

Exploit prediction

1.65% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
packagist typo3/cms
<4.3.12
>=4.4.0, <4.4.9
>=4.5.0, <4.5.4
4.3.12
4.4.9
4.5.4

Affected products

  • TYPO3 TYPO3

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.