WordPress plugin
ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF security & vulnerabilities
No known unpatched vulnerabilities in the latest version
All 11 known vulnerabilities are fixed in the latest release. If you run an older version, update to null or newer.
- Critical0
- High3
- Medium8
- Low0
All ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF vulnerabilities
| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting ≤6.5.6Update to 6.6.0 | CVE-2026-103070 | |
| High7.5 | Authenticated (Subscriber+) PHP Object Injection ≤6.5.5Update to 6.5.6 | CVE-2026-97246 | |
| High8.8 | Authenticated (Author+) PHP Object Injection via Nested JSON Post Content ≤6.5.5Update to 6.5.6 | CVE-2026-17086 | |
| High7.5 | Authenticated (Author+) PHP Object Injection ≤6.4.3Update to 6.4.4 | CVE-2026-39471 | |
| Medium5.4 | Authenticated (Author+) Stored Cross-Site Scripting via Attachment Title ≤6.4.3Update to 6.4.4 | CVE-2026-4335 | |
| Medium4.9 | Authenticated (Editor+) Arbitrary File Read via 'loadFile' Parameter ≤6.4.2Update to 6.4.3 | CVE-2026-1246 | |
| Medium5.4 | Authenticated (Contributor+) Settings Import/Export ≤6.3.4Update to 6.3.5 | CVE-2025-11378 | |
| Medium4.9 | Authenticated (Editor+) SQL Injection ≤5.6.3Update to 5.6.4 | CVE-2024-48043 | |
| Medium4.3 | Missing Authorization ≤5.6.3Update to 5.6.4 | CVE-2024-48044 | |
| Medium6.6 | Authenticated(Editor+) PHP Object Injection <5.4.2Update to 5.4.2 | — | |
| Medium6.1 | Reflected Cross-Site Scripting ≤4.22.9Update to 4.22.10 | — |
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting
≤6.5.6Update to 6.6.0
- High7.5Authenticated (Subscriber+) PHP Object Injection
≤6.5.5Update to 6.5.6
- High8.8Authenticated (Author+) PHP Object Injection via Nested JSON Post Content
≤6.5.5Update to 6.5.6
- High7.5Authenticated (Author+) PHP Object Injection
≤6.4.3Update to 6.4.4
- Medium5.4Authenticated (Author+) Stored Cross-Site Scripting via Attachment Title
≤6.4.3Update to 6.4.4
- Medium4.9Authenticated (Editor+) Arbitrary File Read via 'loadFile' Parameter
≤6.4.2Update to 6.4.3
- Medium5.4Authenticated (Contributor+) Settings Import/Export
≤6.3.4Update to 6.3.5
- Medium4.9Authenticated (Editor+) SQL Injection
≤5.6.3Update to 5.6.4
- Medium4.3Missing Authorization
≤5.6.3Update to 5.6.4
- Medium6.6Authenticated(Editor+) PHP Object Injection
<5.4.2Update to 5.4.2
- Medium6.1Reflected Cross-Site Scripting
≤4.22.9Update to 4.22.10
ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF: common questions
Does ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF have known vulnerabilities?
Yes. VulnCrest Radar lists 11 known vulnerabilities in ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF: 3 high, 8 medium. None are known to affect version null.
How do I check which version of ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF I run?
In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.
What is the most recent ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF vulnerability?
CVE-2026-103070, published Oct 8, 2026: ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF <= 6.5.6 - Authenticated (Contributor+) Stored Cross-Site Scripting. Severity: Medium (CVSS 6.4).
Is any ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF vulnerability listed in CISA KEV?
No. None of the known ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF vulnerabilities is currently listed in the CISA KEV catalog.