CVE-2020-26228

Cleartext storage of session identifier

HIGH
7.5
CVSS Score
Published: November 23, 2020 at 09:10 PM UTC
Updated: June 17, 2026 at 03:07 AM UTC
1 product affected across 1 vendorTYPO3

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Severity
HIGH7.5
Exploit prediction
EPSS 0.7%

Description

TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.23 and 10.4.10 user session identifiers were stored in cleartext - without processing with additional cryptographic hashing algorithms. This vulnerability cannot be exploited directly and occurs in combination with a chained attack - like for instance SQL injection in any other component of the system. Update to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described.

Affected

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

95%
v < 10.4.10v < 9.5.2310.0.0 ≤ v < 10.4.109.0.0 ≤ v < 9.5.23
Affected range stops below 10.4.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.5.23, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-312

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