CVE-2022-23518
Improper neutralization of data URIs may allow XSS in rails-html-sanitizer
Impact
## 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).
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| rubygems | rails-html-sanitizer | >= 1.0.3, < 1.4.4 | 1.4.4 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Rubyonrails | Rails Html Sanitizers | from 1.0.3 before 1.4.4 |
| Debian | Debian Linux | Version 10.0 |
| Loofah Project | Loofah | from 2.1.0 before 2.19.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/rails/rails-html-sanitizer/issues/135
- https://github.com/rails/rails-html-sanitizer/security/advisories/GHSA-mcvf-2q2m-x72m
- https://hackerone.com/reports/1694173
- https://lists.debian.org/debian-lts-announce/2023/09/msg00012.html
- https://lists.debian.org/debian-lts-announce/2024/09/msg00045.html
- https://github.com/advisories/GHSA-mcvf-2q2m-x72m
- https://github.com/w3c/svgwg/issues/266
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rails-html-sanitizer/CVE-2022-23518.yml
- https://nvd.nist.gov/vuln/detail/CVE-2022-23518