CVE-2025-23210: Bypass XSS sanitizer using the javascript protocol and special characters in phpoffice/phpspreadsheet
Description
phpoffice/phpspreadsheet is a pure PHP library for reading and writing spreadsheet files. Affected versions have been found to have a Bypass of the Cross-site Scripting (XSS) sanitizer using the javascript protocol and special characters. This issue has been addressed in versions 3.9.0, 2.3.7, 2.1.8, and 1.29.9. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Classification
CVE ID: CVE-2025-23210
CVSS Base Severity: MEDIUM
CVSS Base Score: 4.8
CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Affected Products
Vendor: PHPOffice
Product: PhpSpreadsheet
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.04% (probability of being exploited)
EPSS Percentile: 11.83% (scored less or equal to compared to others)
EPSS Date: 2025-03-04 (when was this score calculated)
References
https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-r57h-547h-w24fhttps://github.com/PHPOffice/PhpSpreadsheet/commit/cde2926a9e2baf146783f8fd1771bbed7d1dc7b3