Phpoffice Phpspreadsheet vulnerabilities

CVE-2020-7776 [MEDIUM] CWE-79 CVE-2020-7776: This affects the package phpoffice/phpspreadsheet from 0.0.0. The library is vulnerable to XSS when This affects the package phpoffice/phpspreadsheet from 0.0.0. The library is vulnerable to XSS when creating an html output from an excel file by adding a comment on any cell. The root cause of this issue is within the HTML writer where user comments are concatenated as part of link and this is returned as HTML. A fix for this issue is available on comm

CVE-2026-35453 [MEDIUM] CWE-79 CVE-2026-35453: PhpSpreadsheet is a library for reading and writing spreadsheet files. In versions 1.30.3 and earlie PhpSpreadsheet is a library for reading and writing spreadsheet files. In versions 1.30.3 and earlier, 2.0.0 through 2.1.15, 2.2.0 through 2.4.4, 3.3.0 through 3.10.4, and 4.0.0 through 5.6.0, the HTML Writer skips htmlspecialchars() output escaping when a cell uses a custom number format containing the @ text placeholder with additional literal text

CVE-2024-45060 [MEDIUM] CWE-79 CVE-2024-45060: PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. One of the sample sc PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. One of the sample scripts in PhpSpreadsheet is susceptible to a cross-site scripting (XSS) vulnerability due to improper handling of input where a number is expected leading to formula injection. The code in in `45_Quadratic_equation_solver.php` concatenates the user supp

CVE-2024-45046 [MEDIUM] CWE-79 CVE-2024-45046: PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. In affected versions PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. In affected versions `\PhpOffice\PhpSpreadsheet\Writer\Html` doesn't sanitize spreadsheet styling information such as font names, allowing an attacker to inject arbitrary JavaScript on the page. As a result an attacker may used a crafted spreadsheet to fully takeover a se

CVE-2024-56408 [MEDIUM] CWE-79 CVE-2024-56408: PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Versions prior to 3.7.0, 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 have no sanitization in the `/vendor/phpoffice/phpspreadsheet/samples/Engineering/Convert-Online.php` file, which leads to the possibility of a cross-site scripting attack. Versions 3.7.0, 2.3.5, 2.1.6, and 1.29.7 contain a patc

CVE-2024-56366 [MEDIUM] CWE-79 CVE-2024-56366: PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Versions prior to 3.7.0, 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 sc

CVE-2024-56409 [MEDIUM] CWE-79 CVE-2024-56409: PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Versions prior to 3.7.0, 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 script

CVE-2026-40296 [MEDIUM] CWE-79 CVE-2026-40296: PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. The HTML writer skip PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. The HTML writer skips htmlspecialchars escaping when a cell's formatted value differs from the original value. When a cell has a custom number format containing the text placeholder @ along with any additional literal characters (for example ". @", "@ ", or "x@"), the for

CVE-2024-56412 [MEDIUM] CWE-79 CVE-2024-56412: PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Versions prior to 3.7.0, 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 bypass of the cross-site scripting sanitizer using the javascript protocol and special characters. An attacker can use special characters, so that the library processes the javascript protocol with special char

CVE-2024-56410 [MEDIUM] CWE-79 CVE-2024-56410: PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Versions prior to 3.7.0, 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 have a cross-site scripting (XSS) vulnerability in custom properties. The HTML page is generated without clearing custom properties. Versions 3.7.0, 2.3.5, 2.1.6, and 1.29.7 contain a patch for the issue.

CVE-2024-56365 [MEDIUM] CWE-79 CVE-2024-56365: PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Versions prior to 3.7.0, 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

CVE-2024-56411 [MEDIUM] CWE-79 CVE-2024-56411: PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Versions prior to 3.7.0, 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 have a cross-site scripting (XSS) vulnerability of the hyperlink base in the HTML page header. The HTML page is formed without sanitizing the hyperlink base. Versions 3.7.0, 2.3.5, 2.1.6, and 1.29.7 contain a patch for the issue

CVE-2024-45292 [MEDIUM] CWE-79 CVE-2024-45292: PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. `\PhpOffice\PhpSprea PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. `\PhpOffice\PhpSpreadsheet\Writer\Html` does not sanitize "javascript:" URLs from hyperlink `href` attributes, resulting in a Cross-Site Scripting vulnerability. This issue has been addressed in release versions 1.29.2, 2.1.1, and 2.3.0. All users are advised to upgrade.

CVE-2025-22131 [MEDIUM] CWE-79 CVE-2025-22131: PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Cross-Site Scripting (XSS PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Cross-Site Scripting (XSS) vulnerability in the code which translates the XLSX file into a HTML representation and displays it in the response.

CVE-2025-23210 [MEDIUM] CWE-79 CVE-2025-23210: phpoffice/phpspreadsheet is a pure PHP library for reading and writing spreadsheet files. Affected v phpoffice/phpspreadsheet is a pure PHP library for reading and writing spreadsheet files. Affected versions have been found to have a Bypass of the Cross-site Scripting (XSS) sanitizer using the javascript protocol and special characters. This issue has been addressed in versions 3.9.0, 2.3.7, 2.1.8, and 1.29.9. Users are advised to upgrade. There ar