{"id":"GHSA-2rqm-h6hv-g79v","title":"odf-kit has HTML injection leading to XSS in odsToHtml() via unescaped style attribute values","summary":"odf-kit has HTML injection leading to XSS in odsToHtml() via unescaped style attribute values","severity":"medium","cvss":6.1,"cwe":["CWE-79"],"vendor":"odf-kit","product":"odf-kit","ecosystem":"npm","affected":["odf-kit >= 0.9.8, < 0.14.2"],"patched":["odf-kit 0.14.2"],"published":"2026-10-23","updated":"2026-10-23","sourceUpdated":"2026-10-23T20:55:33Z","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-2rqm-h6hv-g79v","references":[{"url":"https://github.com/GitHubNewbie0/odf-kit/security/advisories/GHSA-2rqm-h6hv-g79v"},{"url":"https://github.com/GitHubNewbie0/odf-kit/commit/1424227d1ca2716a249b623d1456575ff0331dcc"},{"url":"https://github.com/advisories/GHSA-2rqm-h6hv-g79v"}],"tags":["ghsa","npm"],"ingestedAt":"2026-10-23T21:38:13.038Z","slug":"GHSA-2rqm-h6hv-g79v","body":"## Overview\n\n### Summary\n\nODF style values are interpolated into `style=\"...\"` attributes without HTML-escaping in odf-kit's ODS to-HTML renderer (`odsToHtml()`). A double-quote character inside an attacker-controlled style value breaks out of the attribute, allowing arbitrary HTML/attribute injection — and therefore script execution (XSS) — from a crafted `.ods` file wherever the rendered output is inserted as HTML, which is the documented purpose of the function.\n\n### Details\n\nTwo emission sites in `src/ods/to-html/html-renderer.ts` (before 0.14.0, `src/ods-reader/html-renderer.ts`) write document-controlled values into a `style` attribute without escaping:\n\n- **Cell style.** `buildInlineStyle()` assembles a CSS string from the cell's formatting properties (`fo:color`, `fo:font-size`, `fo:font-family`, `fo:background-color`, `fo:text-align`, etc.) with no escaping, and `renderCell` emits it raw as the cell's `style` attribute.\n- **Row height.** `row.height` (from `style:row-height`) is emitted raw into the row element's `style` attribute.\n\nThe same defect in the ODT renderer (`odtToHtml()`) is tracked as GHSA-3cgg-c5pp-57h6 (CVE-2026-113787).\n\n### Impact\n\nAny consumer that renders `odsToHtml()` output as HTML gets XSS from a crafted `.ods` file they convert: untrusted file → arbitrary tags and attributes → script execution in the host page with the page's origin.\n\n### Patches\n\nFixed in 0.14.2. Both sites now route document-controlled values through a shared attribute-escaping helper:\n\n- [`1424227`](https://github.com/GitHubNewbie0/odf-kit/commit/1424227d1ca2716a249b623d1456575ff0331dcc): escape style attribute values in the ODS HTML renderer\n- [`aa64c73`](https://github.com/GitHubNewbie0/odf-kit/commit/aa64c734ebd7e7be40e35fcda83b1144193c3da2): the shared `escapeAttr` helper\n\nUsers should upgrade to 0.14.2 or later.\n\n### Credit\n\nReported by @PethuKannan.\n\n## Affected packages\n\n- `odf-kit >= 0.9.8, < 0.14.2`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `odf-kit 0.14.2`","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}