Vulnerabilities (CVE)

Filtered by vendor Phpspreadsheet Project Subscribe
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2018-19277 1 Phpspreadsheet Project 1 Phpspreadsheet 2021-10-13 6.8 MEDIUM 8.8 HIGH
securityScan() in PHPOffice PhpSpreadsheet through 1.5.0 allows a bypass of protection mechanisms for XXE via UTF-7 encoding in a .xlsx file
CVE-2019-12331 1 Phpspreadsheet Project 1 Phpspreadsheet 2020-02-10 6.8 MEDIUM 8.8 HIGH
PHPOffice PhpSpreadsheet before 1.8.0 has an XXE issue. The XmlScanner decodes the sheet1.xml from an .xlsx to utf-8 if something else than UTF-8 is declared in the header. This was a security measurement to prevent CVE-2018-19277 but the fix is not sufficient. By double-encoding the the xml payload to utf-7 it is possible to bypass the check for the string ‚<!ENTITY‘ and thus allowing for an xml external entity processing (XXE) attack.