CVE-2024-56365

HIGH EPSS 22.9%
Published Jan 3, 20251y ago · Modified Jun 17, 20262w ago
8.3 CVSS 4.0
High
Find Similar
Published Jan 3, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

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 constructor of the `Downloader` class. Using the `/vendor/phpoffice/phpspreadsheet/samples/download.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 Details

Base Score
8.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:L/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction A
Scope X

Threat Intelligence

EPSS Exploit Probability
22.9% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 4

VendorProductVersionRange
phpofficephpspreadsheet* <1.29.7
phpofficephpspreadsheet*≥2.0.0  –  <2.1.6
phpofficephpspreadsheet*≥2.2.0  –  <2.3.5
phpofficephpspreadsheet*≥3.3.0  –  <3.7.0

References 2

  • github.com https://github.com/PHPOffice/PhpSpreadsheet/commit/700a80346be269af668914172bc6f4521982d0b4#diff-fbb0f53a5c68eeeffaa9ab35552c0b01740396f1a4045af5d2935ec2a62a7816
    Patch
  • github.com https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-jmpx-686v-c3wx
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/PHPOffice/PhpSpreadsheet/commit/700a80346be269af668914172bc6f4521982d0b4#diff-fbb0f53a5c68eeeffaa9ab35552c0b01740396f1a4045af5d2935ec2a62a7816
    Patch