Plugin vulnerabilities
Is WP-Optimize safe? Known vulnerabilities and the version to run.
WP-Optimize: cleans the database, compresses images and caches pages to speed a site up.
The short answer
Run WP-Optimize 4.5.3 or later. That version has a fix for every known vulnerability that's been patched.
- Known vulnerabilities
- 5
- In the last 12 months
- 2
- Rated high or critical
- 1
- No fix yet
- 0
Every known WP-Optimize vulnerability
Newest first. The most recent was disclosed on 6 May 2026. Each one links to its full record on Wordfence.
| Vulnerability | Severity | Affected versions | Fixed in |
|---|---|---|---|
| Authenticated (Author+) Arbitrary File Deletion via 'original-file' Post MetaCVE-2026-7252 · 6 May 2026 | High 8.1 | 4.5.2 and earlier | 4.5.3 |
| Missing Authorization to Authenticated (Subscriber+) Plugin Settings Update and Image ManipulationCVE-2026-2712 · 9 April 2026 | Medium 5.4 | 4.5.0 and earlier | 4.5.1 |
| Authenticated (Admin+) SQL InjectionCVE-2025-3951 · 12 May 2025 | Medium 4.9 | 4.1.1 and earlier | 4.2.0 |
| Stored/Reflected Cross-Site Scripting via Third Party LibraryCVE-2023-1119 · 4 July 2023 | Medium 6.1 | before 3.2.13 | 3.2.13 |
| Cross-Site Request Forgery6 February 2023 | Medium 6.5 | 3.2.11 and earlier | 3.2.12 |
If you run WP-Optimize
What to do now
- Check your version. In WordPress, go to Plugins and look under WP-Optimize. Compare it with the affected versions above.
- Update to 4.5.3 or later. Take a backup first, then update. If the update breaks something, you can restore the backup while you work out why.
- Check the rest of your site. One outdated plugin is rarely the only one. Our free security check looks at your WordPress version, and the plugins and theme it can see from the outside, for known flaws and emails you a report.
Pressfort keeps your plugins up to date for you, testing each update on a copy of your site first, and its virtual patching blocks attacks on newly disclosed flaws, often before a fix is out. If your site does get hacked, two clean-ups a year are included, with a developer stepping in when needed. See how it works.
Caching and performance
Related plugins
LiteSpeed Cache
A caching and speed plugin, mainly for sites on LiteSpeed web servers.
30 known12 in the last year
EWWW Image Optimizer
Compresses images and converts them to WebP to make pages load faster.
14 known8 in the last year
SiteGround Speed Optimizer
SiteGround's caching and performance plugin, often preinstalled on sites hosted there.
5 known3 in the last year
WP Fastest Cache
A simple caching plugin for speeding up WordPress.
39 known5 in the last year
Smush
Compresses, resizes and lazy-loads images.
11 known5 in the last year
WP Super Cache
Automattic's page caching plugin, which serves static copies of pages to speed sites up.
12 known
Data sources and licences
Vulnerability data comes from Wordfence Intelligence and is refreshed daily. Severity is the CVSS score given in each record. Pressfort is not affiliated with Wordfence or Defiant Inc.
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