Image Optimizer, Resizer and CDN – Sirv

76 Quality Score

Active Installs

14/30

At around 1,000 active installs, Sirv sits well below the million-install plugins it is compared against, reflecting its narrower, niche audience.

Update Freshness

25/25

A perfect maintenance score is justified by an update just three weeks ago and a recent WordPress 7.0 compatibility stamp.

User Rating

15/15

A 98 out of 100 rating across 265 reviews signals exceptional user satisfaction for those who have adopted it.

Support Health

8/15

Zero tracked support threads, resolved or otherwise, means we cannot confirm how responsive the developer is when real issues come up.

WP Compatibility

15/15

It supports everything from PHP 5.6 through current versions and claims WordPress 7.0 readiness, so compatibility is not a concern.

Scores higher than 43% of indexed plugins

About

Serve perfectly optimized images, videos, models and 360 spins. The best WordPress & WooCommerce CDN plugin for media.

Active Installs 1k+

Rating ★★★★½ 4.9/5

Last Updated 2026-08-19 4:15pm GMT

Requires WordPress 3.0.1+

Tested Up To 7.1

Requires PHP 5.6+

Security History

12 known vulnerabilities, all patched

2 Critical 3 High 7 Medium

Most recent: April 22, 2025

View details ▸

Sirv <= 7.5.3 - Authenticated (Contributor+) Stored Cross-Site Scripting Medium

April 22, 2025 Patched in ["7.5.4"] CVE-2025-46233

Image Optimizer, Resizer and CDN – Sirv <= 7.3.0 - Missing Authorization to Authenticated (Contributor+) Arbitrary Option Deletion High

November 19, 2024 Patched in ["7.3.1"] CVE-2024-10855

Image Optimizer, Resizer and CDN – Sirv <= 7.2.9 - Authenticated (Author+) Stored Cross-Site Scripting via SVG File Upload Medium

October 7, 2024 Patched in ["7.3.0"] CVE-2024-8964

Image Optimizer, Resizer and CDN – Sirv <= 7.2.7 - Missing Authorization to Authenticated (Contributor+) Arbitrary File Upload High

August 21, 2024 Patched in ["7.2.8"] CVE-2024-8480

Image Optimizer, Resizer and CDN – Sirv <= 7.2.7 - Authenticated(Subscriber+) Missing Authorization to Plugin Settings Update Medium

July 11, 2024 Patched in ["7.2.8"] CVE-2024-6392

Image Optimizer, Resizer and CDN – Sirv <= 7.2.6 - Authenticated (Contributor+) Arbitrary File Upload Critical

June 18, 2024 Patched in ["7.2.7"] CVE-2024-5853

Sirv <= 7.2.2 - Missing Authorization to Arbitrary Options Update Critical

April 23, 2024 Patched in ["7.2.3"] CVE-2024-32959

Image Optimizer, Resizer and CDN – Sirv <= 7.2.0 - Missing Authorization Medium

March 1, 2024 Patched in ["7.2.1"] CVE-2024-27950

Image Optimizer, Resizer and CDN – Sirv <= 7.2.0 - Authenticated (Subscriber+) Server-Side Request Forgery Medium

March 1, 2024 Patched in ["7.2.1"] CVE-2024-27949

Sirv <= 7.1.2 - Missing Authorization via sirv_disconnect Medium

December 26, 2023 Patched in ["7.1.3"] CVE-2023-50898

Image Optimizer, Resizer and CDN – Sirv <= 6.8.0 - Authenticated (Administrator+) Stored Cross-Site Scripting Medium

December 9, 2022 Patched in ["6.8.1"] CVE-2022-4119

Image Optimizer, Resizer and CDN – Sirv < 1.3.2 - SQL Injection High

November 10, 2016 Patched in ["1.3.2"] CVE-2016-10950

What It Does

Sirv is a WordPress plugin that pushes images, videos, 3D models, and 360-degree spins to the Sirv CDN, automatically resizing, compressing, and lazy-loading media for faster page loads. It replaces local media URLs with optimized CDN URLs and supports dynamic formats like WebP and AVIF. It is built primarily for product-heavy stores that rely on rich visual media.

Who It's For

WooCommerce stores, fashion retailers, and visual commerce sites with large product catalogs of high-resolution photography, 360 spins, or 3D models will get the most value. It also fits photography portfolios and media-heavy blogs that need offloaded, fast-loading imagery.

Who Should Skip It

Small blogs or sites under a few hundred images that do not need 360 spins or 3D models should skip this plugin, since they can get comparable results from free image optimizers like EWWW or ShortPixel without paying for a Sirv CDN subscription. Sites on tight budgets will also find the recurring CDN cost harder to justify than a one-time optimizer.

The Bottom Line

Sirv is a well-maintained, highly rated plugin that delivers best-in-class performance for stores with heavy visual media, including 360 spins and 3D models. Its small install base and lack of public support data make it harder to recommend for general bloggers, but for its target niche it earns its strong score. Treat it as a specialized e-commerce tool, not a general-purpose image optimizer.

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Pick Autoptimize if your main goal is CSS, JavaScript, and HTML minification alongside image optimizations rather than full media offloading.