CVE-2020-26227

Cross-Site Scripting in Fluid view helpers

MEDIUM
6.1
CVSS Score
Published: November 23, 2020 at 09:05 PM UTC
Updated: June 17, 2026 at 03:07 AM UTC
1 product affected across 1 vendorTYPO3

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Severity
MEDIUM6.1
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 the system extension Fluid (typo3/cms-fluid) of the TYPO3 core is vulnerable to cross-site scripting passing user-controlled data as argument to Fluid view helpers. 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 < 10.4.106.2.0 ≤ v < 6.2.547.6.0 ≤ v < 7.6.488.7.0 ≤ v < 8.7.389.0.0 ≤ 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 6.2.54, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.6.48, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.7.38, 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:

References (2)

CVSS

6.1MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-79

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