WordPress plugin

Smush – Image Optimization, Compression, Lazy Load, WebP & CDN security & vulnerabilities

Q: Does Smush – Image Optimization, Compression, Lazy Load, WebP & CDN have known vulnerabilities?

Yes. VulnCrest Radar lists 11 known vulnerabilities in Smush – Image Optimization, Compression, Lazy Load, WebP & CDN: 1 critical, 3 high, 5 medium, 2 low. None are known to affect version null.

Q: How do I check which version of Smush – Image Optimization, Compression, Lazy Load, WebP & CDN 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.

Q: What is the most recent Smush – Image Optimization, Compression, Lazy Load, WebP & CDN vulnerability?

CVE-2026-118241, published Nov 11, 2026: Smush – Image Optimization, Compression, Lazy Load, WebP & CDN < 4.3.6 - Authenticated (Author+) Insecure Direct Object Reference. Severity: Medium (CVSS 4.3).

Q: Is any Smush – Image Optimization, Compression, Lazy Load, WebP & CDN vulnerability listed in CISA KEV?

No. None of the known Smush – Image Optimization, Compression, Lazy Load, WebP & CDN vulnerabilities is currently listed in the CISA KEV catalog.

wp-smushit— active installsLast vulnerability Nov 11, 2026

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.

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11Known vulnerabilities

Critical1
High3
Medium5
Low2

Vulnerabilities per year

All Smush – Image Optimization, Compression, Lazy Load, WebP & CDN vulnerabilities

Smush – Image Optimization, Compression, Lazy Load, WebP & CDN vulnerabilities
Severity	Vulnerability	CVE	Published
High7.5	Unauthenticated Denial of Service ≤4.2.0Update to 4.3.0	CVE-2026-81285	Aug 27
High7.2	Authenticated (Administrator+) Remote Code Execution <4.3.2Update to 4.3.2	CVE-2026-19223	Aug 27
Critical9.8	Cross-Site Scripting ≤2.9.1Update to 3.0.0	—	Dec 10, 2018
High8.8	Authenticated PHAR Deserialization ≤3.0.0Update to 3.0.1	—	Dec 10, 2018

High7.5
Unauthenticated Denial of Service
≤4.2.0Update to 4.3.0
CVE-2026-81285Aug 27
High7.2
Authenticated (Administrator+) Remote Code Execution
<4.3.2Update to 4.3.2
CVE-2026-19223Aug 27
Critical9.8
Cross-Site Scripting
≤2.9.1Update to 3.0.0
53b5a052-6e84-4eb5-a7f4-4e32f757f4d6Dec 10, 2018
High8.8
Authenticated PHAR Deserialization
≤3.0.0Update to 3.0.1
15654ff3-2e61-44d2-ae3f-4a353db320cbDec 10, 2018

Smush – Image Optimization, Compression, Lazy Load, WebP & CDN: common questions

Does Smush – Image Optimization, Compression, Lazy Load, WebP & CDN have known vulnerabilities?

Yes. VulnCrest Radar lists 11 known vulnerabilities in Smush – Image Optimization, Compression, Lazy Load, WebP & CDN: 1 critical, 3 high, 5 medium, 2 low. None are known to affect version null.

How do I check which version of Smush – Image Optimization, Compression, Lazy Load, WebP & CDN 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 Smush – Image Optimization, Compression, Lazy Load, WebP & CDN vulnerability?

CVE-2026-118241, published Nov 11, 2026: Smush – Image Optimization, Compression, Lazy Load, WebP & CDN < 4.3.6 - Authenticated (Author+) Insecure Direct Object Reference. Severity: Medium (CVSS 4.3).

Is any Smush – Image Optimization, Compression, Lazy Load, WebP & CDN vulnerability listed in CISA KEV?

No. None of the known Smush – Image Optimization, Compression, Lazy Load, WebP & CDN vulnerabilities is currently listed in the CISA KEV catalog.