Description

The Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 4.2.6. This is due to missing or incorrect nonce validation on the replace_file function. This makes it possible for unauthenticated attackers to overwrite existing media attachments with attacker-supplied file content by supplying a forged multipart POST request targeting any attachment the victim has edit_post capability over via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. The forged request requires a victim with at least Author-level privileges, as the handler enforces a current_user_can('edit_post', $id) check; tricking an Author-level or higher user into clicking a crafted link is sufficient to trigger the overwrite against attachments that user can edit.

Weaknesses 1

References 6

• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.5/inc/media_rename/attachment_edit.php#L24
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.5/inc/media_rename/attachment_edit.php#L331
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.6/inc/media_rename/attachment_edit.php#L24
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/optimole-wp/tags/4.2.6/inc/media_rename/attachment_edit.php#L331
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3574315%40optimole-wp&new=3574315%40optimole-wp&sfp_email=&sfph_mail=
• wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/8a90de6e-6bd5-43b6-980d-84d25d4120ad?source=cve

Remediation