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Weakness (CWE) CWE-434 Unrestricted Upload of File with Dangerous Type 1

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TI-2026-01244 CVE-2026-1555 · GHSA-5c49-p8m3-fjh3

WebStack <= 1.2024 - Unauthenticated Arbitrary File Upload

Priority MEDIUM 51

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.

CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00984 · Published 2026-04-15 · No fix listed CWE-434

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