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.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| phpoffice/phpspreadsheet(Packagist) | 0 | 1.16.0 | N/A |
| phpoffice/phpexcel(Packagist) | 0 | N/A | N/A |
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