CVE-2024-56366

Public Exploit
PhpSpreadsheet vulnerable to unauthorized reflected XSS in the Accounting.php file

Description

PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Versions prior to 3.7.0, 2.3.5, 2.1.6, and 1.29.7 are vulnerable to unauthorized reflected cross-site scripting in the `Accounting.php` file. Using the `/vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Accounting.php` script, an attacker can perform a cross-site scripting attack. Versions 3.7.0, 2.3.5, 2.1.6, and 1.29.7 contain a patch for the issue.

Category

8.3
CVSS
Severity: High
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.05%
Vendor Advisory github.com
Affected: PHPOffice PhpSpreadsheet
Published at:
Updated at:

References

Link Tags
https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-c6fv-7vh8-2rhr exploit vendor advisory
https://github.com/PHPOffice/PhpSpreadsheet/commit/700a80346be269af668914172bc6f4521982d0b4 patch

Frequently Asked Questions

What is the severity of CVE-2024-56366?
CVE-2024-56366 has been scored as a high severity vulnerability.
How to fix CVE-2024-56366?
To fix CVE-2024-56366, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-56366 being actively exploited in the wild?
It is possible that CVE-2024-56366 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-56366?
CVE-2024-56366 affects PHPOffice PhpSpreadsheet.
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