GHSA-x7m8-jrm8-hpvx
@eigenpal/docx-editor-react: CSS injection and print-time XSS via unescaped embedded font-family name
Summary
Embedded 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>
into executable HTML on Print.
Impact
Opening 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.
Remediation
Upgrade 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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
What each source reports
GitHub Advisories Score used
@eigenpal/docx-editor-react: CSS injection and print-time XSS via unescaped embedded font-family name
Summary
Embedded 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>
into executable HTML on Print.
Impact
Opening 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.
Remediation
Upgrade 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.
- Record
GHSA-x7m8-jrm8-hpvx- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
OSV
@eigenpal/docx-editor-react: CSS injection and print-time XSS via unescaped embedded font-family name
Summary
Embedded 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>
into executable HTML on Print.
Impact
Opening 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.
Remediation
Upgrade 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.
- Record
GHSA-x7m8-jrm8-hpvx- CVSS 3.1
- 8.1 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
@eigenpal/docx-editor-corenpm | through 1.8.2 | 1.8.3 |
@eigenpal/docx-editor-reactnpm | through 1.8.2 | 1.8.3 |
@eigenpal/docx-editor-corenpm | before 1.8.3 | 1.8.3 |
@eigenpal/docx-editor-reactnpm | before 1.8.3 | 1.8.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-x7m8-jrm8-hpvx is a high vulnerability (CVSS 8.1) in @eigenpal/docx-editor-react, published September 10, 2026. No source lists public exploit code. Fixed in @eigenpal/docx-editor-core 1.8.3.