CVE-2022-23518 – rails-html-sanitizer

Package

Manager: gem
Name: rails-html-sanitizer
Vulnerable Version: >=1.0.3 <1.4.4

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00234 pctl0.46092

Details

Improper neutralization of data URIs may allow XSS in rails-html-sanitizer ## Summary rails-html-sanitizer `>= 1.0.3, < 1.4.4` is vulnerable to cross-site scripting via data URIs when used in combination with Loofah `>= 2.1.0`. ## Mitigation Upgrade to rails-html-sanitizer `>= 1.4.4`. ## Severity The maintainers have evaluated this as [Medium Severity 6.1](https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N). ## References - [CWE - CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (4.9)](https://cwe.mitre.org/data/definitions/79.html) - [SVG MIME Type (image/svg+xml) is misleading to developers · Issue #266 · w3c/svgwg](https://github.com/w3c/svgwg/issues/266) - https://github.com/rails/rails-html-sanitizer/issues/135 - https://hackerone.com/reports/1694173 ## Credit This vulnerability was independently reported by Maciej Piechota (@haqpl) and Mrinmoy Das (@goromlagche).

Metadata

Created: 2022-12-13T17:45:39Z
Modified: 2023-09-14T16:22:23Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/12/GHSA-mcvf-2q2m-x72m/GHSA-mcvf-2q2m-x72m.json
CWE IDs: ["CWE-79"]
Alternative ID: GHSA-mcvf-2q2m-x72m
Finding: F008
Auto approve: 1