How severe is CVE-2020-7776?

This vulnerability has a severity rating of MEDIUM with a CVSS score of 6.4 out of 10.

What type of vulnerability is CVE-2020-7776?

This is classified as CWE-79, which is a common weakness in software security.

CVE-2020-7776 - MEDIUM Severity | CVSS 6.4

Vulnerability Description

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.

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