CVE-2020-7776

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Summary

CVECVE-2020-7776
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-12-09 17:15:00 UTC
Updated2021-01-19 17:27:00 UTC
DescriptionThis 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.

Risk And Classification

Problem Types: CWE-79

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Phpspreadsheet Project Phpspreadsheet All All All All
Application Phpspreadsheet Project Phpspreadsheet All All All All

References

ReferenceSourceLinkTags
github.com/PHPOffice/PhpSpreadsheet/blob/master/src/PhpSpreadsheet/Write... MISC github.com Broken Link
Cross-site Scripting (XSS) in phpoffice/phpspreadsheet | Snyk MISC snyk.io Exploit, Third Party Advisory
Resolve XSS Vulnerability in the HTML Writer (#1719) · PHPOffice/PhpSpreadsheet@0ed5b80 · GitHub MISC github.com Patch, Third Party Advisory
PhpSpreadsheet/Html.php at master · PHPOffice/PhpSpreadsheet · GitHub MITRE github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

LEGACY: Nikkolai Fernandez

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