Phpoffice Phpspreadsheet vulnerabilities

CVE-2018-19277 [HIGH] CWE-91 CVE-2018-19277: securityScan() in PHPOffice PhpSpreadsheet through 1.5.0 allows a bypass of protection mechanisms fo 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-2024-45293 [HIGH] CWE-611 CVE-2024-45293: PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. The security scanner PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. The security scanner responsible for preventing XXE attacks in the XLSX reader can be bypassed by slightly modifying the XML structure, utilizing white-spaces. On servers that allow users to upload their own Excel (XLSX) sheets, Server files and sensitive information can b

CVE-2026-34084 [CRITICAL] CWE-502 CVE-2026-34084: PhpSpreadsheet is a library for reading and writing spreadsheet files. In versions 1.30.2 and earlie 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:

CVE-2024-45291 [HIGH] CWE-36 CVE-2024-45291: PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. It's possible for an 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 t

CVE-2026-45034 [CRITICAL] CWE-502 PHPSpreadsheet has a patch bypass for CVE-2026-34084 PHPSpreadsheet has a patch bypass for CVE-2026-34084 ## Summary CVE-2026-34084 was patched by the helper `File::prohibitWrappers`. The helper calls `parse_url($filename, PHP_URL_SCHEME)` and then checks `is_string($scheme) && strlen($scheme) > 1` to reject stream wrappers such as `phar://`, `php://`, `data://` or `expect://`. The check is not equivalent to "does the path contain a wrapper". When the input ha

CVE-2025-54370 [HIGH] CWE-918 CVE-2025-54370: PhpOffice/PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to v PhpOffice/PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to versions 1.30.0, 2.1.12, 2.4.0, 3.10.0, and 5.0.0, SSRF can occur when a processed HTML document is read and displayed in the browser. The vulnerability lies in the setPath method of the PhpOffice\PhpSpreadsheet\Worksheet\Drawing class, where a crafted s

CVE-2024-47873 [HIGH] CWE-611 CVE-2024-47873: PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. The XmlScanner class has 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 s

CVE-2024-45290 [HIGH] CWE-36 CVE-2024-45290: PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. It's possible for an 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`

CVE-2024-48917 [HIGH] CVE-2024-48917: PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. The `XmlScanner` class ha 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

CVE-2026-40902 [HIGH] CWE-770 CVE-2026-40902: PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.4, 2.1 PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.4, 2.1.16, 2.4.5, 3.10.5, and 5.7.0, the XLSX reader's ColumnAndRowAttributes::readRowAttributes() method reads row numbers from XML attributes without validating them against the spreadsheet maximum row limit (AddressRange::MAX_ROW = 1,048,576). An attacker

CVE-2026-40863 [HIGH] CWE-770 CVE-2026-40863: PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.4, 2.1 PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Prior to 1.30.4, 2.1.16, 2.4.5, 3.10.5, and 5.7.0, the SpreadsheetML XML reader (Reader\Xml) does not validate the ss:Index row attribute against the maximum allowed row count (AddressRange::MAX_ROW = 1,048,576). An attacker can craft a SpreadsheetML XML file with ss:Index

CVE-2019-12331 [HIGH] CVE-2019-12331: PHPOffice PhpSpreadsheet before 1.8.0 has an XXE issue. The XmlScanner decodes the sheet1.xml from a 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 ‚

CVE-2024-45048 [MEDIUM] CWE-611 CVE-2024-45048: PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Affected versions ar PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. Affected versions are subject to a bypassing of a filter which allows for an XXE-attack. This in turn allows attacker to obtain contents of local files, even if error reporting is muted. This vulnerability has been addressed in release version 2.2.1. All users are advise

CVE-2020-7776 [MEDIUM] CWE-79 CVE-2020-7776: This affects the package phpoffice/phpspreadsheet from 0.0.0. The library is vulnerable to XSS when This affects the package phpoffice/phpspreadsheet from 0.0.0. The library is vulnerable to XSS when creating an html output from an excel file by adding a comment on any cell. The root cause of this issue is within the HTML writer where user comments are concatenated as part of link and this is returned as HTML. A fix for this issue is available on comm

CVE-2026-35453 [MEDIUM] CWE-79 CVE-2026-35453: PhpSpreadsheet is a library for reading and writing spreadsheet files. In versions 1.30.3 and earlie PhpSpreadsheet is a library for reading and writing spreadsheet files. In versions 1.30.3 and earlier, 2.0.0 through 2.1.15, 2.2.0 through 2.4.4, 3.3.0 through 3.10.4, and 4.0.0 through 5.6.0, the HTML Writer skips htmlspecialchars() output escaping when a cell uses a custom number format containing the @ text placeholder with additional literal text

CVE-2024-45046 [MEDIUM] CWE-79 CVE-2024-45046: PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. In affected versions PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. In affected versions `\PhpOffice\PhpSpreadsheet\Writer\Html` doesn't sanitize spreadsheet styling information such as font names, allowing an attacker to inject arbitrary JavaScript on the page. As a result an attacker may used a crafted spreadsheet to fully takeover a se

CVE-2024-56408 [MEDIUM] CWE-79 CVE-2024-56408: PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Versions prior to 3.7.0, PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Versions prior to 3.7.0, 2.3.5, 2.1.6, and 1.29.7 have no sanitization in the `/vendor/phpoffice/phpspreadsheet/samples/Engineering/Convert-Online.php` file, which leads to the possibility of a cross-site scripting attack. Versions 3.7.0, 2.3.5, 2.1.6, and 1.29.7 contain a patc

CVE-2026-40296 [MEDIUM] CWE-79 CVE-2026-40296: PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. The HTML writer skip PhpSpreadsheet is a pure PHP library for reading and writing spreadsheet files. The HTML writer skips htmlspecialchars escaping when a cell's formatted value differs from the original value. When a cell has a custom number format containing the text placeholder @ along with any additional literal characters (for example ". @", "@ ", or "x@"), the for

CVE-2024-45060 [MEDIUM] CWE-79 CVE-2024-45060: PHPSpreadsheet is a pure PHP library for reading and writing spreadsheet files. One of the sample sc 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 supp

CVE-2024-56366 [MEDIUM] CWE-79 CVE-2024-56366: PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Versions prior to 3.7.0, PhpSpreadsheet is a PHP library for reading and writing spreadsheet files. Versions prior to 3.7.0, 2.3.5, 2.1.6, and 1.29.7 are vulnerable to unauthorized reflected cross-site scripting in the `Accounting.php` file. Using the `/vendor/phpoffice/phpspreadsheet/samples/Wizards/NumberFormat/Accounting.php` script, an attacker can perform a cross-site sc