---
id: CVE-2026-91072
title: >-
  The EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a
  WebP-derivative file migration routine to the current site's own uploads
  directory, letting an attacker with Administrator-level access rename or
  delete existing W…
summary: >-
  The EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a
  WebP-derivative file migration routine to the current site's own uploads
  directory, letting an attacker with Administrator-level access rename or
  delete existing W…
severity: none
cwe:
  - CWE-73
product: EWWW Image Optimizer
affected:
  - ewww_image_optimizer < 8.8.0
published: '2026-09-30'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T06:17:09.413'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-91072'
references:
  - url: 'https://wpscan.com/vulnerability/c77770c5-d1af-47f6-9aee-a50d4a919732/'
    label: contact@wpscan.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-30T06:58:55.556Z'
---

## Overview

The EWWW Image Optimizer WordPress plugin before 8.8.0 does not confine a WebP-derivative file migration routine to the current site's own uploads directory, letting an attacker with Administrator-level access rename or delete existing WebP-derivative image files outside that scope, including, on a multisite network, files belonging to a different site they have no access to.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.