{"id":"CVE-2018-19277","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-19277","generatedAt":"2026-10-28T19:05:31.145Z","title":"securityScan() in PHPOffice PhpSpreadsheet through 1.5.0 allows a bypass of protection mechanisms for XXE via UTF-7 encoding in a .xlsx file","description":"securityScan() in PHPOffice PhpSpreadsheet through 1.5.0 allows a bypass of protection mechanisms for XXE via UTF-7 encoding in a .xlsx file","published":"2018-11-14T11:29:08.000Z","lastModified":"2026-06-17T01:49:04.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-91"],"affected":["phpoffice/phpspreadsheet"],"epss":{"score":0.07791,"percentile":0.94629,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":false,"firstPublished":"2018-11-30","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":46050,"kind":"exploit","title":"PhpSpreadsheet < 1.5.0 - XML External Entity (XXE)","url":"https://www.exploit-db.com/exploits/46050","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/webapps/46050.txt","file":"exploits/php/webapps/46050.txt","published":"2018-11-30","added":"2018-12-24","updated":"2018-12-24","author":"Alex Leahu","type":"webapps","platform":"php","port":null,"verified":false,"codes":["CVE-2018-19277"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://www.bishopfox.com/news/2018/11/phpspreadsheet/"}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB and the impact is high, while EPSS rates exploitation at 7.8%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"https://github.com/MewesK/TwigSpreadsheetBundle/issues/18","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/PHPOffice/PhpSpreadsheet/issues/771","tags":["Exploit","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.bishopfox.com/news/2018/11/phpoffice-versions/","tags":["Broken Link"],"source":"cve@mitre.org"},{"url":"https://www.drupal.org/sa-contrib-2021-043","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://github.com/MewesK/TwigSpreadsheetBundle/issues/18","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/PHPOffice/PhpSpreadsheet/issues/771","tags":["Exploit","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.bishopfox.com/news/2018/11/phpoffice-versions/","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.drupal.org/sa-contrib-2021-043","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-19277","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}