CVSS: 7.5EPSS: 0%CPEs: 4EXPL: 0CVE-2024-48917 – XXE in PHPSpreadsheet's XLSX reader
https://notcve.org/view.php?id=CVE-2024-48917
PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. The `XmlScanner` class has a scan method which should prevent XXE attacks. However, in a bypass of 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 encoding UTF-7, and adding at end of the file a comment with the value `encoding="UTF-8"` with `"`, which is matched by the first regex, so that `encoding='UTF-7'` with single quotes `'` in the XML header is not matched by the second regex. 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. • https://github.com/PHPOffice/PhpSpreadsheet/blob/39fc51309181e82593b06e2fa8e45ef8333a0335/src/PhpSpreadsheet/Reader/Security/XmlScanner.php https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-7cc9-j4mv-vcjp https://owasp.org/www-community/vulnerabilities/XML_External_Entity_(XXE)_Processing • CWE-611: Improper Restriction of XML External Entity Reference •
CVSS: 7.5EPSS: 0%CPEs: 4EXPL: 0CVE-2024-47873 – PhpSpreadsheet XmlScanner bypass leads to XXE
https://notcve.org/view.php?id=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 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. • https://github.com/PHPOffice/PhpSpreadsheet/blob/39fc51309181e82593b06e2fa8e45ef8333a0335/src/PhpSpreadsheet/Reader/Security/XmlScanner.php https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-jw4x-v69f-hh5w https://owasp.org/www-community/vulnerabilities/XML_External_Entity_(XXE)_Processing https://www.w3.org/TR/xml/#sec-guessing-no-ext-info • CWE-611: Improper Restriction of XML External Entity Reference •
CVSS: 7.1EPSS: 0%CPEs: 3EXPL: 0CVE-2024-45060 – Unauthenticated Cross-Site-Scripting (XSS) in sample file in PHPSpreadsheet
https://notcve.org/view.php?id=CVE-2024-45060
PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. One of the sample scripts in PhpSpreadsheet is susceptible to a cross-site scripting (XSS) vulnerability due to improper handling of input where a number is expected leading to formula injection. The code in in `45_Quadratic_equation_solver.php` concatenates the user supplied parameters directly into spreadsheet formulas. This allows an attacker to take control over the formula and output unsanitized data into the page, resulting in JavaScript execution. This issue has been addressed in release versions 1.29.2, 2.1.1, and 2.3.0. • https://github.com/PHPOffice/PhpSpreadsheet/blob/d50b8b5de7e30439fb57eae7df9ea90e79fa0f2d/samples/Basic/45_Quadratic_equation_solver.php#L56 https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-v66g-p9x6-v98p • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVSS: 7.7EPSS: 0%CPEs: 3EXPL: 0CVE-2024-45290 – Path traversal and Server-Side Request Forgery when opening XLSX files in PHPSpreadsheet
https://notcve.org/view.php?id=CVE-2024-45290
PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. It's possible for an attacker to construct an XLSX file which links media from external URLs. When opening the XLSX file, PhpSpreadsheet retrieves the image size and type by reading the file contents, if the provided path is a URL. By using specially crafted `php://filter` URLs an attacker can leak the contents of any file or URL. Note that this vulnerability is different from GHSA-w9xv-qf98-ccq4, and resides in a different component. • https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-5gpr-w2p5-6m37 https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-w9xv-qf98-ccq4 • CWE-36: Absolute Path Traversal CWE-918: Server-Side Request Forgery (SSRF) •
CVSS: 6.3EPSS: 0%CPEs: 3EXPL: 0CVE-2024-45291 – Path traversal and Server-Side Request Forgery in HTML writer when embedding images is enabled in PHPSpreadsheet
https://notcve.org/view.php?id=CVE-2024-45291
PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. It's possible for an attacker to construct an XLSX file that links images from arbitrary paths. When embedding images has been enabled in HTML writer with `$writer->setEmbedImages(true);` those files will be included in the output as `data:` URLs, regardless of the file's type. Also URLs can be used for embedding, resulting in a Server-Side Request Forgery vulnerability. When embedding images has been enabled, an attacker can read arbitrary files on the server and perform arbitrary HTTP GET requests. • https://github.com/PHPOffice/PhpSpreadsheet/security/advisories/GHSA-w9xv-qf98-ccq4 • CWE-36: Absolute Path Traversal CWE-918: Server-Side Request Forgery (SSRF) •