PT-2026-50629 · Optimole · Optimole – Optimize Images | Convert Webp & Avif | Cdn & Lazy Load | Image Optimization
Alexandru Bucur
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Published
2026-06-18
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Updated
2026-06-18
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CVE-2026-11784
CVSS v3.1
4.3
Medium
| Vector | AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N |
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.
Fix
CSRF
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Weakness Enumeration
Related Identifiers
Affected Products
Optimole – Optimize Images | Convert Webp & Avif | Cdn & Lazy Load | Image Optimization