In WordPress before 4.9.9 and 5.x before 5.0.1, when the Apache HTTP Server is used, authors could upload crafted files that bypass intended MIME type restrictions, leading to XSS, as demonstrated by a .jpg file without JPEG data.
CVSS Details
- CVSS 3.1 Base Score: 5.4
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | debian-upgrade-wordpress | Feb 20, 2019 | Dec 14, 2018 | |
| Ubuntu | no-fix-ubuntu-package | Jun 26, 2025 | Dec 14, 2018 | |
| Wordpress | wordpress-upgrade-4_9_9wordpress-upgrade-5_0_1 | Jan 15, 2019 | Dec 14, 2018 |
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