CVE-2024-56408: PhpSpreadsheet allows unauthorized Reflected XSS in `Convert-Online.php` file

CVE-2024-56408 · Severity: low · CVSS 3.1 · Published 2025-01-03

PhpSpreadsheet allows unauthorized Reflected XSS in `Convert-Online.php` file

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

Quick answers

Is CVE-2024-56408 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2024-56408 being exploited in the wild.
How severe is CVE-2024-56408?
Low severity, with a CVSS score of 3.1, published 3 January 2025.
Which products and versions are affected?
phpoffice/phpexcel (Packagist) ECOSYSTEM:introduced=0,last_affected=1.8.2; phpoffice/phpspreadsheet (Packagist) ECOSYSTEM:introduced=3.0.0,fixed=3.7.0.
Is there a fix for CVE-2024-56408?
Yes. phpoffice/phpspreadsheet (Packagist): upgrade to 3.7.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
Am I affected by CVE-2024-56408?
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 3.7.0 or later
    composer require phpoffice/phpspreadsheet:^3.7.0

Affected products

  • phpoffice/phpexcel (Packagist) ECOSYSTEM:introduced=0,last_affected=1.8.2
  • phpoffice/phpspreadsheet (Packagist) ECOSYSTEM:introduced=3.0.0,fixed=3.7.0

Identifiers

  • CVE-2024-56408
  • GHSA-x88g-h956-m5xg

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