PT-2026-54910 · Elementor · Image Optimizer – Optimize Images/Convert To Webp/Avif
Dmitry Ignatyev
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Publicado
2026-07-02
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Atualizado
2026-07-02
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CVE-2026-5821
CVSS v3.1
8.1
Alta
| Vetor | AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
The Image Optimizer plugin for WordPress is vulnerable to arbitrary file deletion in versions up to and including 1.7.4. This is due to insufficient path validation in the Image Backup::remove() function where backup file paths stored in post meta are used directly in file deletion operations without verifying they are within the uploads directory. The plugin stores backup file paths in the image optimizer metadata post meta field and trusts these paths completely when deleting backups on the delete attachment hook. An authenticated attacker with Author-level access can edit the image optimizer metadata post meta on their own attachments via WordPress's Custom Fields interface, injecting arbitrary absolute file paths into the backups array. When the attacker subsequently deletes the attachment, the plugin calls File System::delete() on each path without validation. This makes it possible for authenticated attackers, with Author-level access and above, to delete arbitrary files on the server within the web server's filesystem permissions, potentially leading to denial of service, data loss, or security degradation.
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Image Optimizer – Optimize Images/Convert To Webp/Avif