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.
References
Link | Resource |
---|---|
https://snyk.io/vuln/SNYK-PHP-PHPOFFICEPHPSPREADSHEET-1048856 | Exploit Third Party Advisory |
https://github.com/PHPOffice/PhpSpreadsheet/commit/0ed5b800be2136bcb8fa9c1bdf59abc957a98845 | Patch Third Party Advisory |
https://github.com/PHPOffice/PhpSpreadsheet/blob/master/src/PhpSpreadsheet/Writer/Html.php%23L1792 | Broken Link |
Configurations
Information
Published : 2020-12-09 09:15
Updated : 2021-01-19 09:27
NVD link : CVE-2020-7776
Mitre link : CVE-2020-7776
JSON object : View
CWE
CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Products Affected
phpspreadsheet_project
- phpspreadsheet