{"id":"GHSA-x7m8-jrm8-hpvx","aliases":[],"url":"https://o3.security/vulnerability/GHSA-x7m8-jrm8-hpvx","summary":"@eigenpal/docx-editor-react: CSS injection and print-time XSS via unescaped embedded font-family name","details":"## Summary\nEmbedded font-family names (`word/fontTable.xml`) were interpolated unescaped into an injected `@font-face` `<style>` and into the print window's `document.write()`. A crafted name injects page-wide CSS on open, and breaks out of `<style>`\n  into executable HTML on Print.\n\n## Impact\nOpening a crafted `.docx` applies attacker-controlled CSS page-wide with zero clicks (overlay/phishing, attribute-selector exfiltration of input values, tracking beacons). Clicking Print escalates to script execution in the embedder's origin.\n\n## Remediation\nUpgrade to 1.8.3. Font names are CSS-escaped before interpolation (quotes, backslash, `< >`, and CSS newlines), and the print window is assembled with DOM APIs instead of `document.write`.","published":"2026-09-10T15:06:16Z","modified":"2026-09-10T15:15:06.004637443Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"@eigenpal/docx-editor-core","fixedVersion":"1.8.3"},{"ecosystem":"npm","name":"@eigenpal/docx-editor-react","fixedVersion":"1.8.3"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/eigenpal/docx-editor/security/advisories/GHSA-x7m8-jrm8-hpvx"},{"type":"PACKAGE","url":"https://github.com/eigenpal/docx-editor"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-10T15:15:06.004637443Z"}}