CVSS: 5.4EPSS: 0%CPEs: 3EXPL: 0CVE-2024-45292 – PhpSpreadsheet HTML writer is vulnerable to Cross-Site Scripting via JavaScript hyperlinks
https://notcve.org/view.php?id=CVE-2024-45292
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. There are no known workarounds for this vulnerability. • https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-r8w8-74ww-j4wh • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVSS: 7.5EPSS: 0%CPEs: 3EXPL: 0CVE-2024-45293 – XML External Entity Reference (XXE) in PHPSpreadsheet's XLSX reader
https://notcve.org/view.php?id=CVE-2024-45293
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 (XLSX) sheets, Server files and sensitive information can be disclosed by providing a crafted sheet. The security scan function in src/PhpSpreadsheet/Reader/Security/XmlScanner.php contains a flawed XML encoding check to retrieve the input file's XML encoding in the toUtf8 function. The function searches for the XML encoding through a defined regex which looks for `encoding="*"` and/or `encoding='*'`, if not found, it defaults to the UTF-8 encoding which bypasses the conversion logic. • https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-6hwr-6v2f-3m88 • CWE-611: Improper Restriction of XML External Entity Reference •
CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 0CVE-2024-45048 – XML External Entity Reference (XXE) in PHPSpreadsheet
https://notcve.org/view.php?id=CVE-2024-45048
PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Affected versions are subject to a bypassing of a filter which allows for an XXE-attack. This in turn allows attacker to obtain contents of local files, even if error reporting is muted. This vulnerability has been addressed in release version 2.2.1. All users are advised to upgrade. • https://github.com/PHPOffice/PhpSpreadsheet/commit/bea2d4b30f24bcc8a7712e208d1359e603b45dda https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-ghg6-32f9-2jp7 • CWE-611: Improper Restriction of XML External Entity Reference •