Cross-site scripting in phpoffice/phpspreadsheet

中 6.4CVE-2020-7776 · GHSA-4mqv-gcr3-pff9 · SNYK-PHP-PHPOFFICEPHPSPREADSHEET-1048856 · 09/12/2020 公開 · 17/06/2026 更新

要点

CVE-2020-7776 は phpoffice/phpexcel, phpoffice/phpspreadsheet, phpspreadsheet (phpoffice) に影響する深刻度「中」 (CVSS 6.4) の脆弱性です。
今後30日間に悪用される確率（EPSS）：1.3%（全脆弱性の 70.8% より高い）。
対処：1.16.0 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
phpoffice/phpexcel Packagist	`≤ 1.8.2`	修正版なし
phpoffice/phpspreadsheet Packagist	`< 1.16.0`	`1.16.0`
phpspreadsheet phpoffice	`< 1.16.0`	`1.16.0`

概要

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.

NVD の説明

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.