漏洞信息
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Vulnerability Title
PhpSpreadsheet XmlScanner bypass leads to XXE
Vulnerability Description
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 UCS-4 and encoding guessing. An attacker can bypass the sanitizer and achieve an XML external entity attack. Versions 1.9.4, 2.1.3, 2.3.2, and 3.4.0 fix the issue.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Vulnerability Type
XML外部实体引用的不恰当限制(XXE)
Vulnerability Title
PhpSpreadsheet 代码问题漏洞
Vulnerability Description
PhpSpreadsheet是PHPOffice开源的一款用于读取和写入电子表格文件的PHP库。 PhpSpreadsheet存在代码问题漏洞，该漏洞源于攻击者可以绕过清理程序并实现XML外部实体攻击。
CVSS Information
N/A
Vulnerability Type
N/A