In short
- CVE-2020-7776 is a MEDIUM (CVSS 6.4) vulnerability affecting phpoffice/phpexcel, phpoffice/phpspreadsheet, phpspreadsheet (phpoffice).
- Chance of exploitation in the next 30 days (EPSS): 1.3%, higher than 70.8% of all vulnerabilities.
- Fix: update to 1.16.0 or later.
Description
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 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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