Medium severity · published Jan 3, 2025
CVE-2024-56366
PhpSpreadsheet vulnerable to unauthorized reflected XSS in the Accounting.php file
5.4
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 27% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PH
PhpSpreadsheet · PHPOffice
>= 3.0.0, < 3.7.0; < 1.29.7; >= 2.0.0, < 2.1.6; >= 2.2.0, < 2.3.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-56366
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-56366
Patch
https://github.com/PHPOffice/PhpSpreadsheet/commit/700a80346be269af668914172bc6f4521982d0b4
Exploit
https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-c6fv-7vh8-2rhr
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