CVE-2024-45291: Absolute Path Traversal

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...

PhpSpreadsheet HTML writer is vulnerable to Cross-Site Scripting via style information

Summary \PhpOffice\PhpSpreadsheet\Writer\Html doesn't sanitize spreadsheet styling information such as font names, allowing an attacker to inject arbitrary JavaScript on the page. PoC Example target script: loadDIR . '/book.xlsx'; $writer = new \PhpOffice\PhpSpreadsheet\Writer\Html$spreadsheet;...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS due to missing sanitization of the spreadsheet styling information, via the \PhpOffice\PhpSpreadsheet\Writer\Html component. PoC php loadDIR . '/book.xlsx'; $writer = new...

CVE-2024-45046 PhpSpreadsheet HTML writer is vulnerable to Cross-Site Scripting via style information

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...

CVE-2024-45046 PhpSpreadsheet HTML writer is vulnerable to Cross-Site Scripting via style information

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...

CVE-2024-45046 PhpSpreadsheet HTML writer is vulnerable to Cross-Site Scripting via style information

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...

CVE-2024-45046: Improper Neutralization of Input During Web Page Generation

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...

PHPSpreadsheet security vulnerabilities

PhpSpreadsheet is an open source PHP library for reading and writing spreadsheet files from PHPOffice. A security vulnerability exists in PHPSpreadsheet, which stems from PhpOfficePhpSpreadsheetWriterHtml does not clean up spreadsheet style information...

XSS Vulnerability in HTML Writer

This is: - X a bugfix - a new feature Checklist: - X Changes are covered by unit tests - X Code style is respected - X Commit message explains why the change is made see https://github.com/erlang/otp/wiki/Writing-good-commit-messages - X CHANGELOG.md contains a short summary of the change -...

CVE-2020-7776

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...

CVE-2020-7776

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...

CVE-2020-7776: Improper Neutralization of Input During Web Page Generation

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...

PT-2020-19785 · Phpoffice · Phpspreadsheet

Name of the Vulnerable Software and Affected Versions: phpoffice/phpspreadsheet versions 0.0.0 and earlier Description: 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 us...

Cross-site Scripting (XSS)

Overview Affected versions of this package are vulnerable to Cross-site Scripting XSS. 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...