GHSA-228g-948r-83gx
Improper neutralization of data URIs may allow XSS in Loofah
Details
## Summary
Loofah `>= 2.1.0, < 2.19.1` is vulnerable to cross-site scripting via the `image/svg+xml` media type in data URIs.
## Mitigation
Upgrade to Loofah `>= 2.19.1`.
## Severity
The Loofah 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://hackerone.com/reports/1694173 - https://github.com/flavorjones/loofah/issues/101
## Credit
This vulnerability was responsibly reported by Maciej Piechota (@haqpl).
Are you affected?
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Affected packages
References
- https://github.com/flavorjones/loofah/security/advisories/GHSA-228g-948r-83gx [WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2022-23515 [ADVISORY]
- https://github.com/flavorjones/loofah/issues/101 [WEB]
- https://github.com/w3c/svgwg/issues/266 [WEB]
- https://github.com/flavorjones/loofah/commit/415677f3cf7f9254f42f811e784985cd63c7407f [WEB]
- https://hackerone.com/reports/1694173 [WEB]
- https://github.com/flavorjones/loofah [PACKAGE]
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/loofah/CVE-2022-23515.yml [WEB]
- https://lists.debian.org/debian-lts-announce/2023/09/msg00011.html [WEB]
- https://lists.debian.org/debian-lts-announce/2024/09/msg00044.html [WEB]