Smush – Image Optimization, Compression, Lazy Load, WebP & CDN vulnerabilities
Plugin slug wp-smushit · 11 known vulnerabilities · latest disclosed 2026-11-11 · WordPress.org page
Every listed vulnerability has a fix. Version 4.3.6 or later is not affected by any of them. If your site runs an older version, update it.
4 of 11 rated high or critical (CVSS 7 or more).
Known vulnerabilities in Smush – Image Optimization, Compression, Lazy Load, WebP & CDN
| Severity | Affected versions | Fixed in | CVE | Published | Details |
|---|---|---|---|---|---|
| Medium 4.3 | < 4.3.6 | 4.3.6 | CVE-2026-118241 | 2026-11-11 | Advisory |
| Medium 6.4 | <= 4.3.5 | 4.3.6 | CVE-2026-120845 | 2026-11-06 | Advisory |
| Low 2.7 | <= 4.3.3 | 4.3.4 | CVE-2026-110039 | 2026-10-14 | Advisory |
| High 7.2 | < 4.3.2 | 4.3.2 | CVE-2026-19223 | 2026-08-27 | Advisory |
| High 7.5 | <= 4.2.0 | 4.3.0 | CVE-2026-81285 | 2026-08-27 | Advisory |
| Low 2.7 | <= 3.17.0 | 3.17.1 | CVE-2025-22288 | 2025-03-29 | Advisory |
| Medium 4.3 | <= 3.16.4 | 3.16.5 | CVE-2023-3352 | 2024-06-20 | Advisory |
| Medium 4.4 | <= 3.9.8 | 3.9.9 | CVE-2022-1009 | 2022-05-03 | Advisory |
| High 8.8 | <= 3.0.0 | 3.0.1 | none | 2018-12-10 | Advisory |
| Critical 9.8 | <= 2.9.1 | 3.0.0 | none | 2018-12-10 | Advisory |
| Medium 5.3 | <= 2.7.5 | 2.7.6 | CVE-2017-15079 | 2017-09-21 | Advisory |
Check if a site is affected
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Questions
Is the Smush – Image Optimization, Compression, Lazy Load, WebP & CDN plugin safe to use?
All 11 known issues are fixed in current versions (4.3.6 or later). Keeping it updated is what matters.
How do I check which version of Smush – Image Optimization, Compression, Lazy Load, WebP & CDN my site runs?
In WordPress go to Plugins > Installed Plugins. From the outside, the free PluginPeek scan below reads the version from the site's public files.
How do I fix a vulnerable plugin?
Make a full backup, then update it from Dashboard > Updates and check the site afterwards. If you would rather not, we can do it for a fixed $99, paid after you have checked the site.