Blocksy Companion Pro < 2.1.47 Unauthenticated File Upload via save_attachments
70Vexday Risk Score
Prioriza la corrección. Ella explotación observada por VulnCheck y tiene prueba de concepto pública.
ssvc Actcvss 9.2epss 3.6%
de la publicación al arma18 días
Publicada en NVD8 jul
1ª PoC+18d
VulnCheck2 jul
probabilidad de explotación
3.6%top 11% de las CVE
explotación observada
síVulnCheck
2 exploit(s) público(s)
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.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Productos afectados
Creative Themes · Blocksy CompanionPoCs públicas encontradas — 2
exploitdbwww.exploit-db.com/exploits/52640no verificadogithubgithub.com/shinthink/CVE-2026-58480★ 3⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
Referencias
https://patchstack.com/database/wordpress/plugin/blocksy-companion/vulnerability/wordpress-blocksy-companion-plugin-2-1-46-unauthenticated-arbitrary-file-upload-vulnerabilityhttps://wordpress.org/plugins/blocksy-companion/https://www.vulncheck.com/advisories/blocksy-companion-pro-unauthenticated-file-upload-via-save-attachmentshttps://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/blocksy-companion/blocksy-companion-2146-unauthenticated-arbitrary-file-upload-via-blc-review-images-parameter