9.2
Critical
CVE-2026-58480 Blocksy Companion Pro plugin for WordPress before 2.1.47 contains an unauthenticated arbitrary file upload vulnerability…
Description
Blocksy Companion Pro plugin for WordPress before 2.1.47 contains an unauthenticated arbitrary file upload vulnerability that allows attackers to upload executable files by bypassing extension validation in the save_attachments function exposed through the Advanced Reviews feature. Attackers can exploit the Custom Fonts extension's flawed strpos() substring check by uploading double-extension filenames such as shell.woff2.php, causing the validation to pass on the substring match while the web server executes the file as PHP, achieving remote code execution.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Blocksy Companion 2.1 | earliest → 2.1.46 | 2.1.47 |
Other CVEs of Blocksy Companion
The 4 CVEs of Blocksy Companion →
CVE-2026-65444
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Creative Themes…
6.5
Medium
CVE-2026-97247
Unauthenticated Broken Access Control in Blocksy Companion <= 2.1.55 versions
6.5
Medium
CVE-2024-35633
Server-Side Request Forgery (SSRF) vulnerability in Creative Themes Blocksy Companion blocksy-companion.This issue…
4.4
Medium