CVE-2022-23520

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, there is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer due to an incomplete fix of CVE-2022-32209. Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer's allowed tags to allow both "select" and "style" elements. Code is only impacted if allowed tags are being overridden. This issue is patched in version 1.4.4. All users overriding the allowed tags to include both "select" and "style" should either upgrade or use this workaround: Remove either "select" or "style" from the overridden allowed tags. NOTE: Code is _not_ impacted if allowed tags are overridden using either the :tags option to the Action View helper method sanitize or the :tags option to the instance method SafeListSanitizer#sanitize.

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://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-rrfc-7g8p-99q8	Exploit Third Party Advisory
https://hackerone.com/reports/1654310	Exploit Third Party Advisory

Advertisement

Configurations

Configuration 1 (hide)

cpe:2.3:a:rails_html_sanitizer_project:rails_html_sanitizer:*:*:*:*:*:ruby:*:*

Information

Published : 2022-12-14 10:15

Updated : 2022-12-16 13:38

NVD link : CVE-2022-23520

Mitre link : CVE-2022-23520

JSON object : View

CWE

CWE-79

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

Advertisement

Products Affected

rails_html_sanitizer_project

rails_html_sanitizer

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-rrfc-7g8p-99q8", "name": "https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-rrfc-7g8p-99q8", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}, {"url": "https://hackerone.com/reports/1654310", "name": "https://hackerone.com/reports/1654310", "tags": ["Exploit", "Third Party Advisory"], "refsource": "MISC"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, there is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer due to an incomplete fix of CVE-2022-32209. Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer's allowed tags to allow both \"select\" and \"style\" elements. Code is only impacted if allowed tags are being overridden. This issue is patched in version 1.4.4. All users overriding the allowed tags to include both \"select\" and \"style\" should either upgrade or use this workaround: Remove either \"select\" or \"style\" from the overridden allowed tags. NOTE: Code is _not_ impacted if allowed tags are overridden using either the :tags option to the Action View helper method sanitize or the :tags option to the instance method SafeListSanitizer#sanitize."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-79"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2022-23520", "ASSIGNER": "security-advisories@github.com"}}, "impact": {"baseMetricV3": {"cvssV3": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.1, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.8}}, "publishedDate": "2022-12-14T18:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:rails_html_sanitizer_project:rails_html_sanitizer:*:*:*:*:*:ruby:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "1.4.4"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2022-12-16T21:38Z"}