{"id":"CVE-2022-23515","aliases":["GHSA-228g-948r-83gx"],"url":"https://o3.security/vulnerability/CVE-2022-23515","summary":"Improper neutralization of data URIs may allow XSS in Loofah","details":"## Summary\n\nLoofah `>= 2.1.0, < 2.19.1` is vulnerable to cross-site scripting via the `image/svg+xml` media type in data URIs.\n\n\n## Mitigation\n\nUpgrade to Loofah `>= 2.19.1`.\n\n\n## Severity\n\nThe 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).\n\n\n## References\n\n- [CWE - CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (4.9)](https://cwe.mitre.org/data/definitions/79.html)\n- [SVG MIME Type (image/svg+xml) is misleading to developers · Issue #266 · w3c/svgwg](https://github.com/w3c/svgwg/issues/266)\n- https://hackerone.com/reports/1694173\n- https://github.com/flavorjones/loofah/issues/101\n\n## Credit\n\nThis vulnerability was responsibly reported by Maciej Piechota (@haqpl).","published":"2022-12-14T13:23:02.054Z","modified":"2026-08-12T03:51:44.417898483Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":{"score":0.00792,"percentile":0.53774,"asOf":"2026-08-31"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"RubyGems","name":"loofah","fixedVersion":"2.19.1"}],"fix":{"url":"https://github.com/flavorjones/loofah/commit/415677f3cf7f9254f42f811e784985cd63c7407f","label":"flavorjones/loofah@415677f"},"references":[{"type":"WEB","url":"https://hackerone.com/reports/1694173"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2023/09/msg00011.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/09/msg00044.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23515.json"},{"type":"ADVISORY","url":"https://github.com/flavorjones/loofah/security/advisories/GHSA-228g-948r-83gx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-23515"},{"type":"REPORT","url":"https://github.com/flavorjones/loofah/issues/101"},{"type":"WEB","url":"https://github.com/w3c/svgwg/issues/266"},{"type":"WEB","url":"https://github.com/flavorjones/loofah/commit/415677f3cf7f9254f42f811e784985cd63c7407f"},{"type":"PACKAGE","url":"https://github.com/flavorjones/loofah"},{"type":"WEB","url":"https://github.com/rubysec/ruby-advisory-db/blob/master/gems/loofah/CVE-2022-23515.yml"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:44.417898483Z"}}