WordPress plugin
Image Optimizer – Compress Images and Convert to WebP or AVIF security & vulnerabilities
No known unpatched vulnerabilities in the latest version
All 2 known vulnerabilities are fixed in the latest release. If you run an older version, update to null or newer.
- Critical0
- High1
- Medium1
- Low0
All Image Optimizer – Compress Images and Convert to WebP or AVIF vulnerabilities
| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| High8.1 | Authenticated (Author+) Arbitrary File Deletion via Post Meta Field Injection ≤1.7.4Update to 1.7.5 | CVE-2026-5821 |
- High8.1Authenticated (Author+) Arbitrary File Deletion via Post Meta Field Injection
≤1.7.4Update to 1.7.5
Image Optimizer – Compress Images and Convert to WebP or AVIF: common questions
Does Image Optimizer – Compress Images and Convert to WebP or AVIF have known vulnerabilities?
Yes. VulnCrest Radar lists 2 known vulnerabilities in Image Optimizer – Compress Images and Convert to WebP or AVIF: 1 high, 1 medium. None are known to affect version null.
How do I check which version of Image Optimizer – Compress Images and Convert to WebP or 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 Image Optimizer – Compress Images and Convert to WebP or AVIF vulnerability?
CVE-2026-5821, published Jul 1, 2026: Image Optimizer <= 1.7.4 - Authenticated (Author+) Arbitrary File Deletion via Post Meta Field Injection. Severity: High (CVSS 8.1).
Is any Image Optimizer – Compress Images and Convert to WebP or AVIF vulnerability listed in CISA KEV?
No. None of the known Image Optimizer – Compress Images and Convert to WebP or AVIF vulnerabilities is currently listed in the CISA KEV catalog.