CVE-2022-36020

The typo3/html-sanitizer package is an HTML sanitizer, written in PHP, aiming to provide XSS-safe markup based on explicitly allowed tags, attributes and values. Due to a parsing issue in the upstream package `masterminds/html5`, malicious markup used in a sequence with special HTML comments cannot be filtered and sanitized. This allows for a bypass of the cross-site scripting mechanism of `typo3/html-sanitizer`. This issue has been addressed in versions 1.0.7 and 2.0.16 of the `typo3/html-sanitizer` package. Users are advised to upgrade. There are no known workarounds for this issue.

CVSS v3.0 6.1 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

References

Link	Resource
https://packagist.org/packages/masterminds/html5	Third Party Advisory
https://github.com/TYPO3/html-sanitizer/security/advisories/GHSA-47m6-46mj-p235	Third Party Advisory
https://packagist.org/packages/typo3/html-sanitizer	Product Third Party Advisory
https://github.com/TYPO3/html-sanitizer/commit/60bfdc7f9b394d0236e16ee4cea8372a7defa493	Patch Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:typo3:html_sanitizer::::::::
	cpe:2.3:a:typo3:html_sanitizer::::::::

Information

Published : 2022-09-13 10:15

Updated : 2022-09-15 19:36

NVD link : CVE-2022-36020

Mitre link : CVE-2022-36020

JSON object : View

CWE

CWE-79

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

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Products Affected

typo3

html_sanitizer

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