{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "phpoffice/phpspreadsheet"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.8.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "phpoffice/phpspreadsheet"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.29.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "phpoffice/phpspreadsheet"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.1.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "phpoffice/phpspreadsheet"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.2.0"
            },
            {
              "fixed": "2.3.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "phpoffice/phpexcel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.8.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-22131"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-01-21T21:09:13Z",
    "nvd_published_at": "2025-01-20T16:15:27Z",
    "severity": "MODERATE"
  },
  "details": "### Summary\nThe researcher discovered zero-day vulnerability Cross-Site Scripting (XSS) vulnerability in the code which translates the XLSX file into a HTML representation and displays it in the response.\n\n### Details\nWhen generating the HTML from an xlsx file containing multiple sheets, a navigation menu is created. This menu includes the sheet names, which are not sanitized. As a result, an attacker can exploit this vulnerability to execute JavaScript code.\n\n```php\n        // Construct HTML\n        $html = \u0027\u0027;\n\n        // Only if there are more than 1 sheets\n        if (count($sheets) \u003e 1) {\n            // Loop all sheets\n            $sheetId = 0;\n\n            $html .= \u0027\u003cul class=\"navigation\"\u003e\u0027 . PHP_EOL;\n\n            foreach ($sheets as $sheet) {\n                $html .= \u0027  \u003cli class=\"sheet\u0027 . $sheetId . \u0027\"\u003e\u003ca href=\"#sheet\u0027 . $sheetId . \u0027\"\u003e\u0027 . $sheet-\u003egetTitle() . \u0027\u003c/a\u003e\u003c/li\u003e\u0027 . PHP_EOL;\n                ++$sheetId;\n            }\n\n            $html .= \u0027\u003c/ul\u003e\u0027 . PHP_EOL;\n        }\n```\n\n### PoC\n1. Create an XLSX file with multiple sheets : \n![image](https://github.com/user-attachments/assets/e3fc027a-9525-4d7f-b107-cfa6e78d04e7)\n\n2. Generate the HTML content \n```php\n\u003c?php\n\trequire __DIR__ . \u0027/vendor/autoload.php\u0027;\n\n\t$inputFileName = \u0027payload.xlsx\u0027;\n\t$spreadsheet = \\PhpOffice\\PhpSpreadsheet\\IOFactory::load($inputFileName);\n\t$writer = new \\PhpOffice\\PhpSpreadsheet\\Writer\\Html($spreadsheet);\n\t$writer-\u003ewriteAllSheets();\n\techo $writer-\u003egenerateHTMLAll();\n?\u003e\n```\n3. Enjoy\n![image](https://github.com/user-attachments/assets/3e3c24f4-cb5d-451d-978f-9d33234f3bd1)\n\n\n### Impact\n\nXSS can cause a variety of problems for the end user that range in severity from an annoyance to complete account compromise.\nExample of impacts :\n\n- Disclosure of the user\u2019s session cookie, allowing an attacker to hijack the user\u2019s session and take over the account (Only if HttpOnly cookie\u0027s flag is set to false).\n- Redirecting the user to some other page or site (like phishing websites)\n- Modifying the content of the current page (add a fake login page that sends credentials to the attacker).\n- Automatically download malicious files.\n- Requests access to the victim geolocation / camera.\n- ...",
  "id": "GHSA-79xx-vf93-p7cx",
  "modified": "2025-03-06T18:16:08Z",
  "published": "2025-01-21T21:09:13Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-79xx-vf93-p7cx"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22131"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/4088381ccfaf241d7d42c333de0dc8c98e338743"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/PHPOffice/PhpSpreadsheet"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Cross-Site Scripting (XSS) vulnerability in generateNavigation() function in PhpSpreadsheet"
}