AUGUST 25, 2026
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Case File

CVE-2026-11784

MEDIUM · CVSS 4.3 EPSS 0.23%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-06-18 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.3. It affects WordPress. Exploitation may require the attacker to be authenticated.

CVE
CVE-2026-11784
Severity
MEDIUM
CVSS
4.3
EPSS
0.23%
WordPress

Original NVD 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.