CVE-2026-1555
WebStack <= 1.2024 - Unauthenticated Arbitrary File Upload
- State
- Published
- Severity
- 9.8 Critical
- Published
- Apr 15, 2026
- Updated
- Apr 15, 2026
- Reserved
- Jan 28, 2026
Description
The WebStack theme for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the io_img_upload() function in all versions up to, and including, 1.2024. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.8 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Wordfence |
Weaknesses
- CWE-434 Unrestricted Upload of File with Dangerous Type
Affected Products
| Product | Versions |
|---|---|
WebStackOwen |
|
References
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