Lazy Load Optimizer Security & Risk Analysis

wordpress.org/plugins/lazy-load-optimizer

Lazy loading images and iframes to speed up sites page load speed.

3K active installs v1.4.7 PHP 5.6+ WP 4.0+ Updated Jan 16, 2021
image-lazy-loadlazy-loadlazy-loadinglazyloadoptimize
61
C · Use Caution
CVEs total1
Unpatched1
Last CVEJul 28, 2025
Safety Verdict

Is Lazy Load Optimizer Safe to Use in 2026?

Use With Caution

Score 61/100

Lazy Load Optimizer has 1 unpatched vulnerability. Evaluate alternatives or apply available mitigations.

1 known CVE 1 unpatched Last CVE: Jul 28, 2025Updated 5yr ago
Risk Assessment

The "lazy-load-optimizer" plugin, version 1.4.7, exhibits a concerning security posture primarily due to its past vulnerability history. While the static analysis reveals an extremely small attack surface with no identified entry points and a complete absence of dangerous functions or raw SQL queries, this does not fully alleviate risk. The fact that 67% of output is properly escaped is a positive indicator of good coding practices for visible data, but it leaves room for potential cross-site scripting (XSS) vulnerabilities in the remaining 33%. The lack of vulnerability history in the current scan, coupled with the positive static analysis, might suggest recent improvements or a version update that addresses previous issues. However, the presence of a known, currently unpatched high-severity vulnerability, specifically a 'PHP Remote File Inclusion' (RFI) from 2025-07-28, is a significant red flag. This historical pattern of a severe vulnerability, even if not present in the current scan, implies a potential for recurring insecure coding practices or that the current version may not have fully remediated this specific risk, leaving the site exposed.

Key Concerns

  • Unpatched high severity CVE
  • 1/3 of output not properly escaped
  • No capability checks found
  • No nonce checks found
Vulnerabilities
1

Lazy Load Optimizer Security Vulnerabilities

CVEs by Year

1 CVE in 2025 · unpatched
2025
Patched Has unpatched

Severity Breakdown

High
1

1 total CVE

CVE-2025-60074high · 8.1Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion')

Lazy Load Optimizer <= 1.4.7 - Unauthenticated Local File Inclusion

Jul 28, 2025Unpatched
Code Analysis
Analyzed Mar 16, 2026

Lazy Load Optimizer Code Analysis

Dangerous Functions
0
Raw SQL Queries
0
0 prepared
Unescaped Output
10
20 escaped
Nonce Checks
0
Capability Checks
0
File Operations
0
External Requests
0
Bundled Libraries
0

Output Escaping

67% escaped30 total outputs
Attack Surface

Lazy Load Optimizer Attack Surface

Entry Points0
Unprotected0
WordPress Hooks 15
actionadmin_enqueue_scriptssrc\Admin\Admin.php:43
filterplugin_action_links_lazy-load-optimizer/lazy-load-optimizer.phpsrc\Admin\Admin.php:44
actionadmin_initsrc\Admin\Admin.php:45
actionadmin_menusrc\Admin\Admin.php:46
actioncustomize_registersrc\Admin\Customizer.php:26
actioncustomize_registersrc\Admin\Customizer.php:27
actionwpsrc\Frontend\Frontend.php:40
actionwpsrc\Frontend\Frontend.php:41
actionwp_enqueue_scriptssrc\Frontend\Frontend.php:73
actionwp_headsrc\Frontend\Frontend.php:74
filterscript_loader_tagsrc\Frontend\Frontend.php:75
filterwp_get_attachment_image_attributessrc\Frontend\Frontend.php:77
actionwp_headsrc\Frontend\Frontend.php:79
actionwp_footersrc\Frontend\Frontend.php:80
actionplugins_loadedsrc\LazyLoadOptimizerPlugin.php:34
Maintenance & Trust

Lazy Load Optimizer Maintenance & Trust

Maintenance Signals

WordPress version tested5.6.17
Last updatedJan 16, 2021
PHP min version5.6
Downloads81K

Community Trust

Rating88/100
Number of ratings24
Active installs3K
Developer Profile

Lazy Load Optimizer Developer Profile

Processby

8 plugins · 22K total installs

77
trust score
Avg Security Score
76/100
Avg Patch Time
30 days
View full developer profile
Detection Fingerprints

How We Detect Lazy Load Optimizer

Patterns used to identify this plugin on WordPress sites during automated security audits and web crawling.

Asset Fingerprints

Asset Paths
/wp-content/plugins/lazy-load-optimizer/admin/css/lla-admin.css/wp-content/plugins/lazy-load-optimizer/frontend/js/lazysizes.min.js/wp-content/plugins/lazy-load-optimizer/frontend/js/lazyload.min.js
Script Paths
/wp-content/plugins/lazy-load-optimizer/frontend/js/lazysizes.min.js/wp-content/plugins/lazy-load-optimizer/frontend/js/lazyload.min.js
Version Parameters
lazy-load-optimizer/admin/css/lla-admin.css?ver=lazy-load-optimizer/frontend/js/lazysizes.min.js?ver=lazy-load-optimizer/frontend/js/lazyload.min.js?ver=

HTML / DOM Fingerprints

Data Attributes
data-srcdata-srcset
JS Globals
window.LazyLoadwindow.lazysizes
FAQ

Frequently Asked Questions about Lazy Load Optimizer