CVE-2020-7776

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.

Score

CVSS 3.1 7.1 High

Status

Modified - report@snyk.io

Published

2020-12-09

Last modified

2024-09-16

Weaknesses

CWE-79

Affected products

• Phpspreadsheet (Phpoffice)

References

• https://github.com/PHPOffice/PhpSpreadsheet/blob/master/src/PhpSpreadsheet/Writer/Html.php%23L1792
• https://github.com/PHPOffice/PhpSpreadsheet/commit/0ed5b800be2136bcb8fa9c1bdf59abc957a98845
• https://snyk.io/vuln/SNYK-PHP-PHPOFFICEPHPSPREADSHEET-1048856