WP Flexslider Security & Risk Analysis

wordpress.org/plugins/wp-flexslider

Simple, easy to use with default WordPress Uploader.

700 active installs v1.0.9 PHP + WP 4.0+ Updated May 6, 2019
flexslidergalleryslider
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
Safety Verdict

Is WP Flexslider Safe to Use in 2026?

Generally Safe

Score 85/100

WP Flexslider has no known CVEs and is actively maintained. It's a solid choice for most WordPress installations.

No known CVEs Updated 6yr ago
Risk Assessment

Based on the provided static analysis and vulnerability history, the wp-flexslider plugin version 1.0.9 presents a generally good security posture. The absence of any recorded CVEs and the clean taint analysis, with zero critical or high severity flows, are very positive indicators. The code also demonstrates sound practices like the exclusive use of prepared statements for SQL queries and a very high percentage of properly escaped output, minimizing common web application vulnerabilities. The attack surface is also zero, meaning there are no readily identifiable entry points for attackers.

However, there are some areas that warrant consideration. The complete lack of nonce checks and capability checks across all code signals is a significant concern. While the current analysis shows no exposed entry points, any future additions or modifications to the plugin could introduce vulnerabilities if these essential security measures are not implemented. Similarly, the absence of any AJAX handlers, REST API routes, shortcodes, or cron events suggests a very limited functionality, which, while contributing to the current low risk, might also indicate a lack of ongoing development or feature expansion that could later introduce security gaps if not carefully managed. The plugin appears to be robust in its current state, but a proactive approach to implementing standard security checks is recommended to prevent future risks.

Key Concerns

  • No nonce checks implemented
  • No capability checks implemented
Vulnerabilities
None known

WP Flexslider Security Vulnerabilities

No known vulnerabilities — this is a good sign.
Code Analysis
Analyzed Mar 16, 2026

WP Flexslider Code Analysis

Dangerous Functions
0
Raw SQL Queries
0
0 prepared
Unescaped Output
1
43 escaped
Nonce Checks
0
Capability Checks
0
File Operations
0
External Requests
0
Bundled Libraries
0

Output Escaping

98% escaped44 total outputs
Attack Surface

WP Flexslider Attack Surface

Entry Points0
Unprotected0
WordPress Hooks 14
actionafter_setup_themeinc\admin\editor.php:26
filterjetpack_gallery_typesinc\admin\editor.php:45
filterwp_long_live_gallery_media_gallery_setting_typesinc\admin\editor.php:50
actionadmin_initinc\admin\editor.php:53
filterwp_flexslider_default_gallery_typeinc\admin\editor.php:56
actionadmin_print_footer_scriptsinc\admin\editor.php:92
actionprint_media_templatesinc\admin\editor.php:93
actionadmin_menuinc\admin\settings.php:19
actionadmin_initinc\admin\settings.php:20
filterpost_galleryinc\public\main.php:34
filtershortcode_atts_galleryinc\public\main.php:188
actionplugins_loadedwp-flexslider.php:35
actionafter_setup_themewp-flexslider.php:36
actionwp_enqueue_scriptswp-flexslider.php:82
Maintenance & Trust

WP Flexslider Maintenance & Trust

Maintenance Signals

WordPress version tested5.1.22
Last updatedMay 6, 2019
PHP min version
Downloads21K

Community Trust

Rating84/100
Number of ratings5
Active installs700
Developer Profile

WP Flexslider Developer Profile

mnmlthms

3 plugins · 7K total installs

84
trust score
Avg Security Score
85/100
Avg Patch Time
30 days
View full developer profile
Detection Fingerprints

How We Detect WP Flexslider

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

Asset Fingerprints

Asset Paths
/wp-content/plugins/wp-flexslider/assets/flexslider.css/wp-content/plugins/wp-flexslider/assets/css/style.css/wp-content/plugins/wp-flexslider/assets/jquery.flexslider.js/wp-content/plugins/wp-flexslider/assets/js/script.js
Script Paths
/wp-content/plugins/wp-flexslider/assets/jquery.flexslider.js/wp-content/plugins/wp-flexslider/assets/js/script.js
Version Parameters
/wp-content/plugins/wp-flexslider/assets/css/style.css?ver=/wp-content/plugins/wp-flexslider/assets/jquery.flexslider.js?ver=/wp-content/plugins/wp-flexslider/assets/js/script.js?ver=

HTML / DOM Fingerprints

CSS Classes
flex-viewportflex-direction-navflex-control-navflex-slideflex-active-slide
HTML Comments
<!-- WP Flexslider --><!-- WP Flexslider Gallery -->
Data Attributes
data-flexslider
JS Globals
wp_flexslider_params
Shortcode Output
<div id="carousel" class="flexslider"><ul class="slides">
FAQ

Frequently Asked Questions about WP Flexslider