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Fencer Vulns
medium 4.2

CVE-2023-47127 json

Weak Authentication in Session Handling in typo3/cms-core

published 2023-11-14 2 y ago modified 2026-09-10 1 mo ago also BIT-typo3-2023-47127 , EUVD-2023-2865 , GHSA-3vmm-7h4j-69rm

cvss
4.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

TYPO3 is an open source PHP based web content management system released under the GNU GPL. In typo3 installations there are always at least two different sites. Eg. first.example.org and second.example.com. In affected versions a session cookie generated for the first site can be reused on the second site without requiring additional authentication. This vulnerability has been addressed in versions 8.7.55, 9.5.44, 10.4.41, 11.5.33, and 12.4.8. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Patch / fix

  • packagist typo3/cms-core 8.7.55, 9.5.44, 10.4.41, 11.5.33, 12.4.8
  • bitnami typo3 8.7.55, 9.5.44, 10.4.41, 11.5.33, 12.4.8
  • typo3 typo3 8.7.55, 9.5.44, 10.4.41, 11.5.33, 12.4.8

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
GitHub 3.1 4.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
OSV 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
packagist typo3/cms-core
>=8.0.0, <8.7.55
>=9.0.0, <9.5.44
>=10.0.0, <10.4.41
>=11.0.0, <11.5.33
>=12.0.0, <12.4.8
8.7.55
9.5.44
10.4.41
11.5.33
12.4.8
bitnami typo3
>=8.0.0, <8.7.55
>=9.0.0, <9.5.44
>=10.0.0, <10.4.41
>=11.0.0, <11.5.33
>=12.0.0, <12.4.8
8.7.55
9.5.44
10.4.41
11.5.33
12.4.8

Affected products

  • TYPO3 typo3

Classification

Weakness
  • CWE-302 Authentication Bypass by Assumed-Immutable Data
  • CWE-287 Improper Authentication

References

Sources

Fencer Vulns 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.