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 8.0 HIGH
CVSS v2.0 4.3 MEDIUM

8.0^/10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.6 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

4.3^/10

CVSS v2.0 : MEDIUM

V2 Legend

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/commit/f20db4e74cf9803c6cffca2ed2f03e1b0b89d0dc	Patch Third Party Advisory
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
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

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::::::::

History

21 Nov 2024, 05:19

Type	Values Removed	Values Added
CVSS	v2 : ~~4.3~~ v3 : ~~6.1~~	v2 : 4.3 v3 : 8.0
References	~~() https://github.com/TYPO3/Fluid/commit/f20db4e74cf9803c6cffca2ed2f03e1b0b89d0dc - Patch, Third Party Advisory~~	() https://github.com/TYPO3/Fluid/commit/f20db4e74cf9803c6cffca2ed2f03e1b0b89d0dc - Patch, Third Party Advisory
References	~~() https://github.com/TYPO3/Fluid/security/advisories/GHSA-hpjm-3ww5-6cpf - Exploit, Third Party Advisory~~	() https://github.com/TYPO3/Fluid/security/advisories/GHSA-hpjm-3ww5-6cpf - Exploit, Third Party Advisory
References	~~() https://typo3.org/security/advisory/typo3-core-sa-2020-009 - Exploit, Vendor Advisory~~	() https://typo3.org/security/advisory/typo3-core-sa-2020-009 - Exploit, Vendor Advisory

Information

Published : 2020-11-17 21:15

Updated : 2024-11-21 05:19

NVD link : CVE-2020-26216

Mitre link : CVE-2020-26216

CVE.ORG link : CVE-2020-26216

JSON object : View

Products Affected

typo3

fluid

CWE

CWE-79

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

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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."}, {"lang": "es", "value": "TYPO3 Fluid anterior a versiones 2.0.8, 2.1.7, 2.2.4, 2.3.7, 2.4.4, 2.5.11 y 2.6.10, es vulnerable a un ataque de tipo Cross-Site Scripting. Se han detectado tres vulnerabilidades de tipo XSS en Fluid: 1. TagBasedViewHelper permit\u00eda un ataque de tipo XSS por medio de matrices de additionalAttributes creadas maliciosamente mediante la creaci\u00f3n de claves con comillas de cierre de atributos seguidas de HTML. Al representar tales atributos, TagBuilder no escapaba de las claves. 2. ViewHelpers que usaba el rasgo CompileWithContentArgumentAndRenderStatic, y que declaraba escapeOutput = false, recibir\u00edan el argumento de contenido en formato sin escape. 3. Las subclases de AbstractConditionViewHelper recibir\u00edan los argumentos then y else en formato sin escape. Actualice a las versiones 2.0.8, 2.1.7, 2.2.4, 2.3.7, 2.4.4, 2.5.11 o 2.6.10 de este paquete typo3fluid/fluid que corrige el problema descrito. 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8.0 /10

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

4.3 /10

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

JSON object

Attach tags to CVE-2020-26216

8.0^/10

4.3^/10

Attach tags to `CVE-2020-26216`