CVE-2020-26216

TYPO3 Fluid before versions 2.0.8, 2.1.7, 2.2.4, 2.3.7, 2.4.4, 2.5.11 and 2.6.10 is vulnerable to Cross-Site Scripting. Three XSS vulnerabilities have been detected in Fluid: 1. TagBasedViewHelper allowed XSS through maliciously crafted additionalAttributes arrays by creating keys with attribute-closing quotes followed by HTML. When rendering such attributes, TagBuilder would not escape the keys. 2. ViewHelpers which used the CompileWithContentArgumentAndRenderStatic trait, and which declared escapeOutput = false, would receive the content argument in unescaped format. 3. Subclasses of AbstractConditionViewHelper would receive the then and else arguments in unescaped format. Update to versions 2.0.8, 2.1.7, 2.2.4, 2.3.7, 2.4.4, 2.5.11 or 2.6.10 of this typo3fluid/fluid package that fix the problem described. More details are available in the linked advisory.

CVSS v3.0 6.1 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.1^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:P/A:N

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://github.com/TYPO3/Fluid/security/advisories/GHSA-hpjm-3ww5-6cpf	Exploit Third Party Advisory
https://typo3.org/security/advisory/typo3-core-sa-2020-009	Exploit Vendor Advisory
https://github.com/TYPO3/Fluid/commit/f20db4e74cf9803c6cffca2ed2f03e1b0b89d0dc	Patch Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:typo3:fluid::::::::
	cpe:2.3:a:typo3:fluid::::::::
	cpe:2.3:a:typo3:fluid::::::::
	cpe:2.3:a:typo3:fluid::::::::
	cpe:2.3:a:typo3:fluid::::::::
	cpe:2.3:a:typo3:fluid::::::::
	cpe:2.3:a:typo3:fluid::::::::

Information

Published : 2020-11-17 13:15

Updated : 2020-12-02 06:03

NVD link : CVE-2020-26216

Mitre link : CVE-2020-26216

JSON object : View

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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Products Affected

typo3

fluid

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