CVE-2020-7776: Cross-site scripting in phpoffice/phpspreadsheet

CVE-2020-7776 · Severity: low · CVSS 3.1 · Published 2021-05-06

Cross-site scripting in phpoffice/phpspreadsheet

Technologies: phpoffice/phpexcel (Packagist), phpoffice/phpspreadsheet (Packagist). Vendors: Packagist.

Quick answers

Is CVE-2020-7776 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2020-7776 being exploited in the wild.
How severe is CVE-2020-7776?
Low severity, with a CVSS score of 3.1, published 6 May 2021.
Which products and versions are affected?
phpoffice/phpexcel (Packagist) ECOSYSTEM:introduced=0,last_affected=1.8.2; phpoffice/phpspreadsheet (Packagist) ECOSYSTEM:introduced=0,fixed=1.16.0.
Is there a fix for CVE-2020-7776?
Yes. phpoffice/phpspreadsheet (Packagist): upgrade to 1.16.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2020-7776?
Check whether you run phpoffice/phpexcel (Packagist) or phpoffice/phpspreadsheet (Packagist) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • phpoffice/phpspreadsheet (Packagist): upgrade to 1.16.0 or later
    composer require phpoffice/phpspreadsheet:^1.16.0

Affected products

  • phpoffice/phpexcel (Packagist) ECOSYSTEM:introduced=0,last_affected=1.8.2
  • phpoffice/phpspreadsheet (Packagist) ECOSYSTEM:introduced=0,fixed=1.16.0

Identifiers

  • CVE-2020-7776
  • GHSA-4mqv-gcr3-pff9

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