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CVE-2026-34084GHSA-Q4Q6-R8WH-5CGH

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.6.0, 3.10.4, 2.4.4, 2.1.15, 1.30.3
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: yes
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: yes · Technical impact: total

  3. Record last updated

Affected versions

  • PHPOffice PhpSpreadsheet

    From 4.0.0 · through 5.5.0; From 3.3.0 · through 3.10.3; From 2.2.0 · through 2.4.3; From 2.0.0 · through 2.1.14; through 1.30.2

  • phpoffice/phpspreadsheetPackagist

    From 4.0.0 · fixed in 5.6.0

  • phpoffice/phpspreadsheetPackagist

    From 3.3.0 · fixed in 3.10.4

  • phpoffice/phpspreadsheetPackagist

    From 2.2.0 · fixed in 2.4.4

  • phpoffice/phpspreadsheetPackagist

    From 2.0.0 · fixed in 2.1.15

  • phpoffice/phpspreadsheetPackagist

    fixed in 1.30.3

References 1

GitHub · PHPOffice/PhpSpreadsheet