CVE-2018-19277
HIGHCVSS 8.8/10EPSS 7.79%
Last modified
CVE-2018-19277 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. securityScan() in PHPOffice PhpSpreadsheet through 1.5.0 allows a bypass of protection mechanisms for XXE via UTF-7 encoding in a .xlsx file. EPSS estimates a 7.79% chance of exploitation in the next 30 days.
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
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Phpoffice | Phpspreadsheet | <= 1.5.0 |
References
- https://github.com/MewesK/TwigSpreadsheetBundle/issues/18Third Party Advisory
- https://github.com/PHPOffice/PhpSpreadsheet/issues/771Exploit, Third Party Advisory
- https://www.drupal.org/sa-contrib-2021-043Third Party Advisory
- https://github.com/MewesK/TwigSpreadsheetBundle/issues/18Third Party Advisory
- https://github.com/PHPOffice/PhpSpreadsheet/issues/771Exploit, Third Party Advisory
- https://www.drupal.org/sa-contrib-2021-043Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-19277?
securityScan() in PHPOffice PhpSpreadsheet through 1.5.0 allows a bypass of protection mechanisms for XXE via UTF-7 encoding in a .xlsx file
How severe is CVE-2018-19277?
CVE-2018-19277 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 7.79% probability of exploitation in the next 30 days.
How do I fix CVE-2018-19277?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2018-19277?
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Scan your code nowSource: NVD / NIST