GHSA-6WPP-88CP-7Q68 PhpSpreadsheet has XSS via NumberFormat @ Text Substitution in HTML Writer

Summary The HTML Writer in PhpSpreadsheet bypasses htmlspecialchars output escaping when a cell uses a custom number format containing the @ text placeholder with additional literal text e.g., @ "items" or "Total: "@. This allows an attacker to inject arbitrary HTML and JavaScript into the...

PhpSpreadsheet has XSS via NumberFormat @ Text Substitution in HTML Writer

Summary The HTML Writer in PhpSpreadsheet bypasses htmlspecialchars output escaping when a cell uses a custom number format containing the @ text placeholder with additional literal text e.g., @ "items" or "Total: "@. This allows an attacker to inject arbitrary HTML and JavaScript into the...

PT-2026-35931

Name of the Vulnerable Software and Affected Versions PhpSpreadsheet versions prior to 1.30.4 PhpSpreadsheet versions 2.0.0 through 2.1.15 PhpSpreadsheet versions 2.2.0 through 2.4.4 PhpSpreadsheet versions 3.3.0 through 3.10.4 PhpSpreadsheet versions 4.0.0 through 5.6.0 Description The HTML Writ...

solspace/craft-freeform Vulnerable to XSS in `PhpSpreadsheet` HTML Writer Due to Unsanitized Styling Data

Summary Short summary of the problem. Make the impact and severity as clear as possible. For example: An unsafe deserialization vulnerability allows any unauthenticated user to execute arbitrary code on the server. \PhpOffice\PhpSpreadsheet\Writer\Html doesn't sanitize spreadsheet styling...

GHSA-44JG-MV3H-WJ6G solspace/craft-freeform Vulnerable to XSS in `PhpSpreadsheet` HTML Writer Due to Unsanitized Styling Data

Summary Short summary of the problem. Make the impact and severity as clear as possible. For example: An unsafe deserialization vulnerability allows any unauthenticated user to execute arbitrary code on the server. \PhpOffice\PhpSpreadsheet\Writer\Html doesn't sanitize spreadsheet styling...

EUVD-2021-0945

Malware in sbrugna...

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 due to improper user input sanitization passed through the generateMeta parameter of the class...

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 due to improper sanitization of the generateHTMLHeader parameter of the...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS due to improper sanitization of the generateHTMLHeader parameter of the PhpOffice\PhpSpreadsheet\Writer\Html class. PoC php generateHTMLAll; Remediation There is no fixed version for phpoffice/phpexcel. Referenc...

PT-2024-10181 · Unknown · Phpspreadsheet

Name of the Vulnerable Software and Affected Versions: PhpSpreadsheet versions prior to 3.7.0 PhpSpreadsheet versions prior to 2.3.5 PhpSpreadsheet versions prior to 2.1.6 PhpSpreadsheet versions prior to 1.29.7 Description: The issue is related to the bypass of the cross-site scripting sanitizer...

CVE-2024-45291 Path traversal and Server-Side Request Forgery in HTML writer when embedding images is enabled in PHPSpreadsheet

PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. 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 th...

CVE-2024-45291 Path traversal and Server-Side Request Forgery in HTML writer when embedding images is enabled in PHPSpreadsheet

PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. 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 th...

CVE-2024-45292 PhpSpreadsheet HTML writer is vulnerable to Cross-Site Scripting via JavaScript hyperlinks

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,...

CVE-2024-45292 PhpSpreadsheet HTML writer is vulnerable to Cross-Site Scripting via JavaScript hyperlinks

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,...

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...

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;...

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 HTML writer process when embedding images. An attacker can read arbitrary files on the server an...

CVE-2024-45292: Improper Neutralization of Input During Web Page Generation

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,...

PhpSpreadsheet cross-site scripting vulnerabilities

PhpSpreadsheet is an open source PHP library from PHPOffice for reading and writing spreadsheet files. A cross-site scripting vulnerability exists in PHPSpreadsheet, which stems from the fact that PhpOfficePhpSpreadsheetWriterHtml does not clean up "javascript:" in the href attribute of hyperlink...