CVE-2026-34084— PhpSpreadsheet SSRF and RCE via PHP stream wrappers in IOFactory::load

PhpSpreadsheet SSRF and RCE via PHP stream wrappers in IOFactory::load

PhpSpreadsheet is a library for reading and writing spreadsheet files. In versions 1.30.2 and earlier, 2.0.0 through 2.1.14, 2.2.0 through 2.4.3, 3.3.0 through 3.10.3, and 4.0.0 through 5.5.0, when the filename argument to IOFactory::load() is user-controlled, an attacker can supply a PHP stream wrapper path (such as phar://, ftp://, or ssh2.sftp://) that passes the is_file() check in File::assertFile(). The phar:// wrapper triggers deserialization of the PHAR metadata, which can lead to remote code execution if a suitable gadget chain is available in the application. The ftp:// and ssh2.sftp:// wrappers can be used for server-side request forgery. This issue has been fixed in versions 1.30.3, 2.1.15, 2.4.4, 3.10.4, and 5.6.0.

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可信数据的反序列化

PhpSpreadsheet 代码问题漏洞

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 1.30.2及之前版本、2.0.0至2.1.14版本、2.2.0至2.4.3版本、3.3.0至3.10.3版本和4.0.0至5.5.0版本存在代码问题漏洞，该漏洞源于IOFactory::load函数中文件名参数可被用户控制，攻击者可提供PHP流包装器路径绕过is_file检查，可能导致远程代码执行或服务端请求伪造。

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