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CVE-2023-47127

Weak Authentication in Session Handling in typo3/cms-core

MEDIUM
5.4
CVSS Score
Published: November 14, 2023 at 07:26 PM UTC
Updated: June 17, 2026 at 06:32 AM UTC
1 product affected across 1 vendorTYPO3

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Severity
MEDIUM5.4
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

TYPO3· TYPO3composer
95%
v < 10.4.41v < 11.5.33v < 12.4.8v < 8.7.55v < 9.5.4410.0.0 ≤ v < 10.4.4111.0.0 ≤ v < 11.5.3312.0.0 ≤ v < 12.4.88.0.0 ≤ v < 8.7.559.0.0 ≤ v < 9.5.44
Affected range stops below 10.4.41, so it looks safe — our inference, not a vendor statement
Affected range stops below 11.5.33, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.4.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.7.55, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.5.44, so it looks safe — our inference, not a vendor statement

References (3)

x_refsource_MISCPatch
Source: [email protected]
https://github.com/TYPO3/typo3/commit/535dfbdc54fd5362e0bc08d911db44eac7f64019
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://github.com/TYPO3/typo3/security/advisories/GHSA-3vmm-7h4j-69rm
x_refsource_MISCVendor Advisory
Source: [email protected]
https://typo3.org/security/advisory/typo3-core-sa-2023-006

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.4MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-302CWE-287

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