{"id":"CVE-2026-107380","summary":"enshrined/svg-sanitize: Stored XSS via DTD Entity / HTML5 Named Character Reference Collision","details":"savg-sanitizer is a PHP SVG/XML sanitizer. Prior to 1.0.0, svg-sanitizer's isHrefSafeValue() validates an SVG href after XML DTD entity expansion, but saveXML() serializes the original entity reference after removing the DTD declaration. A crafted entity such as Tab can appear to the sanitizer as a safe fragment prefix while HTML5 Named Character Reference resolution during inline HTML rendering later converts the surviving reference to whitespace, exposing a javascript: URL. When an application embeds the sanitized SVG inline, a user who activates the link can cause script to execute in the embedding page's origin. This issue is fixed in version 1.0.0.","aliases":["GHSA-9rjx-3jch-6vjf"],"modified":"2026-10-09T02:49:21.443605359Z","published":"2026-10-08T18:06:14.107Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-79"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107380.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107380.json"},{"type":"FIX","url":"https://github.com/darylldoyle/svg-sanitizer/commit/23877db7e76f1e1df5c3e65ab30239219c3d2867"},{"type":"WEB","url":"https://github.com/darylldoyle/svg-sanitizer/releases/tag/1.0.0"},{"type":"ADVISORY","url":"https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-9rjx-3jch-6vjf"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107380"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/darylldoyle/svg-sanitizer","events":[{"introduced":"0"},{"fixed":"f3300fcd1bbf67d205b52217c75d0f7d6a8c47ff"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"1.0.0"}],"source":"AFFECTED_FIELD"}}],"versions":["0.22.0","0.21.0","0.20.0","0.19.0","0.18.0","0.17.0","0.16.0","0.15.4","0.15.3","0.15.2","0.15.1","0.15.0","0.14.1","0.14.0","0.13.3","0.13.2","0.10.0","0.9.2","0.9.1","0.9.0","0.8.2","0.8.1","0.8.0","0.7.2","0.7.1","0.7.0","0.6.0","0.5.3.1","0.5.3","0.5.2","0.5.1","0.5.0","0.4.1","0.4.0","0.3.0","0.2.1","0.2.0","0.1.6","0.1.5","0.1.4","0.1.3","0.1.2","0.1.1","0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107380.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}