Cross-site scripting in phpoffice/phpspreadsheet

TRUNG BÌNH 6.4CVE-2020-7776 · GHSA-4mqv-gcr3-pff9 · SNYK-PHP-PHPOFFICEPHPSPREADSHEET-1048856 · Công bố 09/12/2020 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2020-7776 là lỗ hổng mức TRUNG BÌNH (CVSS 6.4) ảnh hưởng phpoffice/phpexcel, phpoffice/phpspreadsheet, phpspreadsheet (phpoffice).
Xác suất bị khai thác trong 30 ngày tới (EPSS): 1.3%, cao hơn 70.8% các lỗ hổng khác.
Cách xử lý: cập nhật lên 1.16.0 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
phpoffice/phpexcel Packagist	`≤ 1.8.2`	Chưa có bản vá
phpoffice/phpspreadsheet Packagist	`< 1.16.0`	`1.16.0`
phpspreadsheet phpoffice	`< 1.16.0`	`1.16.0`

Mô tả

This affects the package phpoffice/phpspreadsheet. The library is vulnerable to XSS when creating an html output from an excel file by adding a comment on any cell. The root cause of this issue is within the HTML writer where user comments are concatenated as part of link and this is returned as HTML.

Mô tả của NVD

This affects the package phpoffice/phpspreadsheet from 0.0.0. The library is vulnerable to XSS when creating an html output from an excel file by adding a comment on any cell. The root cause of this issue is within the HTML writer where user comments are concatenated as part of link and this is returned as HTML. A fix for this issue is available on commit 0ed5b800be2136bcb8fa9c1bdf59abc957a98845/master branch.