Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization <= 4.2.6 - Cross-Site Request Forgery via 'optml_replace_file' AJAX Action
| CVE | CVE-2026-11784 |
|---|---|
| CVSS | 4.3 (Medium) |
| Publicly Published | June 17, 2026 |
| Last Updated | June 18, 2026 |
| Researcher |
Alexandru Bucur
|
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.
References
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
- plugins.trac.wordpress.org
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Vulnerability Details for Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization
| Software Type | Plugin |
|---|---|
| Software Slug | optimole-wp (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 4.2.7, or a newer patched version |
| Affected Version |
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| Patched Version |
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Recent vulnerabilities in Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization
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