CRITICALCVE-2026-1555Published Modified CNA Wordfence
CVE-2026-1555: WebStack <= 1.2024 - Unauthenticated Arbitrary File Upload
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.
Metrics
- CVSS v3.1
- 9.8
- Severity
- CRITICAL
- Fixed in
- —
- Affected Products
- 1
Affected packages
- Owen / WebStack≤ 1.2024
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HReferences