CVE-2020-26216

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Summary

CVECVE-2020-26216
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-11-17 21:15:00 UTC
Updated2020-12-02 14:03:00 UTC
DescriptionTYPO3 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.

Risk And Classification

Problem Types: CWE-79

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Typo3 Fluid All All All All
Application Typo3 Fluid All All All All

References

ReferenceSourceLinkTags
[SECURITY] Introduce selective argument escaping · TYPO3/Fluid@f20db4e · GitHub MISC github.com Patch, Third Party Advisory
TYPO3-CORE-SA-2020-009: Cross-Site Scripting through Fluid view helper arguments MISC typo3.org Exploit, Vendor Advisory
Cross-Site Scripting through Fluid view helper arguments · Advisory · TYPO3/Fluid · GitHub CONFIRM github.com Exploit, Third Party Advisory
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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