CVE-2024-45293 XML External Entity Reference (XXE) in PHPSpreadsheet's XLSX reader

PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. The security scanner responsible for preventing XXE attacks in the XLSX reader can be bypassed by slightly modifying the XML structure, utilizing white-spaces. On servers that allow users to upload their own Excel XLS...

CVE-2024-45293 XML External Entity Reference (XXE) in PHPSpreadsheet's XLSX reader

PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. The security scanner responsible for preventing XXE attacks in the XLSX reader can be bypassed by slightly modifying the XML structure, utilizing white-spaces. On servers that allow users to upload their own Excel XLS...

CVE-2024-45293

CVE-2024-45293 involves an XXE in PHPSpreadsheet’s XLSX reader where the security scanner that prevents XXE can be bypassed by whitespace in the XML encoding attribute, allowing a crafted XLSX to disclose server data. The root cause is a flawed XML encoding check in XmlScanner.php that defaults t...

XML External Entity (XXE) Injection

Overview phpoffice/phpspreadsheet is a Spreadsheet engine that Read, Create and Write Spreadsheet documents in PHP . Affected versions of this package are vulnerable to XML External Entity XXE Injection through the toUtf8 function in the XmlScanner.php file. An attacker can disclose server files...

XXE in PHPSpreadsheet's XLSX reader

Summary The security scanner responsible for preventing XXE attacks in the XLSX reader can be bypassed by slightly modifying the XML structure, utilizing white-spaces. On servers that allow users to upload their own Excel XLSX sheets, Server files and sensitive information can be disclosed by...

GHSA-6HWR-6V2F-3M88 XXE in PHPSpreadsheet's XLSX reader

Summary The security scanner responsible for preventing XXE attacks in the XLSX reader can be bypassed by slightly modifying the XML structure, utilizing white-spaces. On servers that allow users to upload their own Excel XLSX sheets, Server files and sensitive information can be disclosed by...

PhpSpreadsheet HTML writer is vulnerable to Cross-Site Scripting via JavaScript hyperlinks

Summary \PhpOffice\PhpSpreadsheet\Writer\Html does not sanitize "javascript:" URLs from hyperlink href attributes, resulting in a Cross-Site Scripting vulnerability. PoC Example target script: loadDIR . '/book.xlsx'; $writer = new \PhpOffice\PhpSpreadsheet\Writer\Html$spreadsheet;...

GHSA-R8W8-74WW-J4WH PhpSpreadsheet HTML writer is vulnerable to Cross-Site Scripting via JavaScript hyperlinks

Summary \PhpOffice\PhpSpreadsheet\Writer\Html does not sanitize "javascript:" URLs from hyperlink href attributes, resulting in a Cross-Site Scripting vulnerability. PoC Example target script: loadDIR . '/book.xlsx'; $writer = new \PhpOffice\PhpSpreadsheet\Writer\Html$spreadsheet;...

Cross-site Scripting (XSS)

Overview phpoffice/phpspreadsheet is a Spreadsheet engine that Read, Create and Write Spreadsheet documents in PHP . Affected versions of this package are vulnerable to Cross-site Scripting XSS via the href attributes in hyperlinks due to improper sanitization of "javascript:" URLs. An attacker c...

Absolute Path Traversal

Overview phpoffice/phpspreadsheet is a Spreadsheet engine that Read, Create and Write Spreadsheet documents in PHP . Affected versions of this package are vulnerable to Absolute Path Traversal via the HTML writer process when embedding images. An attacker can read arbitrary files on the server an...

PhpSpreadsheet allows absolute path traversal and Server-Side Request Forgery in HTML writer when embedding images is enabled

Summary It's possible for an attacker to construct an XLSX file that links images from arbitrary paths. When embedding images has been enabled in HTML writer with $writer-setEmbedImagestrue; those files will be included in the output as data: URLs, regardless of the file's type. Also URLs can be...

Absolute Path Traversal

Overview phpoffice/phpspreadsheet is a Spreadsheet engine that Read, Create and Write Spreadsheet documents in PHP . Affected versions of this package are vulnerable to Absolute Path Traversal via the setPath method. An attacker can access or leak sensitive information by constructing a malicious...

GHSA-5GPR-W2P5-6M37 PhpSpreadsheet allows absolute path traversal and Server-Side Request Forgery when opening XLSX file

Summary It's possible for an attacker to construct an XLSX file which links media from external URLs. When opening the XLSX file, PhpSpreadsheet retrieves the image size and type by reading the file contents, if the provided path is a URL. By using specially crafted php://filter URLs an attacker...

PhpSpreadsheet allows absolute path traversal and Server-Side Request Forgery when opening XLSX file

Summary It's possible for an attacker to construct an XLSX file which links media from external URLs. When opening the XLSX file, PhpSpreadsheet retrieves the image size and type by reading the file contents, if the provided path is a URL. By using specially crafted php://filter URLs an attacker...

Cross-site Scripting (XSS)

Overview phpoffice/phpspreadsheet is a Spreadsheet engine that Read, Create and Write Spreadsheet documents in PHP . Affected versions of this package are vulnerable to Cross-site Scripting XSS through the discriminantFormula and r1Formula processes due to improper user input sanitization. An...

PhpSpreadsheet has an Unauthenticated Cross-Site-Scripting (XSS) in sample file

Summary 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. Details The following code in 45Quadraticequationsolver.php concatenates the user supplied...

GHSA-V66G-P9X6-V98P PhpSpreadsheet has an Unauthenticated Cross-Site-Scripting (XSS) in sample file

Summary 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. Details The following code in 45Quadraticequationsolver.php concatenates the user supplied...

PT-2024-31412 · Unknown · Phpspreadsheet

Name of the Vulnerable Software and Affected Versions: PHPSpreadsheet versions prior to 1.29.2 PHPSpreadsheet versions prior to 2.1.1 PHPSpreadsheet versions prior to 2.3.0 Description: The issue is related to a cross-site scripting XSS vulnerability in one of the sample scripts in PHPSpreadsheet...

PhpSpreadsheet 安全漏洞

PhpSpreadsheet is an open source PHP library from PHPOffice for reading and writing spreadsheet files. A security vulnerability exists in PHPSpreadsheet. An attacker can exploit the vulnerability to read arbitrary files on the server and perform arbitrary HTTP GET requests...

PT-2024-31544

Name of the Vulnerable Software and Affected Versions PHPSpreadsheet versions prior to 1.29.2 PHPSpreadsheet versions prior to 2.1.1 PHPSpreadsheet versions prior to 2.3.0 Description The issue allows an attacker to construct an XLSX file that links images from arbitrary paths. When embedding...