CVE-2018-19277 EXPLOIT
8.8
HIGH · CVSS 3.1 · EPSS 7.8% (pctl 94)
Patch early
A public exploit exists.
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
Scoring
| CVSS | 8.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 7.79% — more likely to be exploited than 94% of all CVEs |
| Weakness | CWE-91 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2018-11-14 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| phpoffice | phpspreadsheet |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | PhpSpreadsheet < 1.5.0 - XML External Entity (XXE) | 2018-11-30 |
References
- https://github.com/MewesK/TwigSpreadsheetBundle/issues/18
- https://github.com/PHPOffice/PhpSpreadsheet/issues/771
- https://www.bishopfox.com/news/2018/11/phpoffice-versions/
- https://www.drupal.org/sa-contrib-2021-043
- https://github.com/MewesK/TwigSpreadsheetBundle/issues/18
- https://github.com/PHPOffice/PhpSpreadsheet/issues/771
- https://www.bishopfox.com/news/2018/11/phpoffice-versions/
- https://www.drupal.org/sa-contrib-2021-043
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