Vulnerability Description
PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. In affected versions `\PhpOffice\PhpSpreadsheet\Writer\Html` doesn't sanitize spreadsheet styling information such as font names, allowing an attacker to inject arbitrary JavaScript on the page. As a result an attacker may used a crafted spreadsheet to fully takeover a session of a user viewing spreadsheet files as HTML. This issue has been addressed in release version 2.1.0. All users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Phpoffice | Phpspreadsheet | < 1.29.1 |
Related Weaknesses (CWE)
References
- https://github.com/PHPOffice/PhpSpreadsheet/commit/f7cf378faed2e11cf4825bf8bafeaPatch
- https://github.com/PHPOffice/PhpSpreadsheet/pull/3957Issue TrackingPatch
- https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-wgmf-q9vr-vExploitThird Party Advisory
FAQ
What is CVE-2024-45046?
CVE-2024-45046 is a vulnerability with a CVSS score of 5.4 (MEDIUM). PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. In affected versions `\PhpOffice\PhpSpreadsheet\Writer\Html` doesn't sanitize spreadsheet styling information such as fo...
How severe is CVE-2024-45046?
CVE-2024-45046 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-45046?
Check the references section above for vendor advisories and patch information. Affected products include: Phpoffice Phpspreadsheet.