CVE-2024-47873

PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. The XmlScanner class has a scan method which should prevent XXE attacks. However, prior to versions 1.9.4, 2.1.3, 2.3.2, and 3.4.0, the regexes used in the scan method and the findCharSet method can be bypassed by using...

GHSA-7CC9-J4MV-VCJP XXE in PHPSpreadsheet's XLSX reader

Summary The XmlScanner class has a scan method which should prevent XXE attacks. However, we found another bypass than the previously reported CVE-2024-47873, the regexes from the findCharSet method, which is used for determining the current encoding can be bypassed by using a payload in the...

XXE in PHPSpreadsheet's XLSX reader

Summary The XmlScanner class has a scan method which should prevent XXE attacks. However, we found another bypass than the previously reported CVE-2024-47873, the regexes from the findCharSet method, which is used for determining the current encoding can be bypassed by using a payload in the...

CVE-2024-48917

CVE-2024-48917 (PhpSpreadsheet XXE bypass) : The XmlScanner in PhpSpreadsheet can be bypassed via the encoding detection logic (findCharSet) when processing XML with UTF-7 payloads, allowing an XML External Entity attack. A comment injection at the end of the file encoding tag (e.g., encoding="UT...

CVE-2024-47873 PhpSpreadsheet XmlScanner bypass leads to XXE

PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. The XmlScanner class has a scan method which should prevent XXE attacks. However, prior to versions 1.9.4, 2.1.3, 2.3.2, and 3.4.0, the regexes used in the scan method and the findCharSet method can be bypassed by using...

CVE-2024-47873

PhpSpreadsheet's XML scanner contains a bypass that can enable XML External Entity (XXE) attacks. The findCharSet/scan logic can be bypassed by encoding tricks (e.g., UCS-4, UTF-7) and encoding guessing, allowing sanitizers to be circumvented. Affected versions are prior to 1.9.4, 2.1.3, 2.3.2, a...

CVE-2024-47873 PhpSpreadsheet XmlScanner bypass leads to XXE

PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. The XmlScanner class has a scan method which should prevent XXE attacks. However, prior to versions 1.9.4, 2.1.3, 2.3.2, and 3.4.0, the regexes used in the scan method and the findCharSet method can be bypassed by using...