Event CLNDR Security & Risk Analysis

wordpress.org/plugins/event-clndr

An uncomplicated event manager with a highly customisable (developer-friendly) front-end calendar utilising CLNDR.js.

70 active installs v1.05 PHP + WP 3.5+ Updated Jan 3, 2018
calendardateseventevents
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
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Safety Verdict

Is Event CLNDR Safe to Use in 2026?

Generally Safe

Score 85/100

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

No known CVEs Updated 8yr ago
Risk Assessment

The event-clndr plugin v1.05 exhibits a mixed security posture. On the positive side, it demonstrates good practices by using prepared statements for all its SQL queries and has no known critical or high-severity vulnerabilities in its history. The absence of external HTTP requests and bundled libraries is also a plus. However, there are significant concerns regarding output escaping and potential unsanitized paths.

The static analysis reveals a low attack surface with only one shortcode as an entry point, and importantly, none of these appear to be unprotected. The plugin also correctly implements nonce checks in two instances. The primary weaknesses lie in the handling of output, with only 16% of outputs being properly escaped, which could lead to cross-site scripting (XSS) vulnerabilities if user-supplied data is not sanitized before being displayed.

Furthermore, the taint analysis identified 3 flows with unsanitized paths, although none reached a critical or high severity. This suggests a potential for information disclosure or other vulnerabilities if these paths involve sensitive operations or user inputs. The lack of capability checks is also a notable omission, as it means that the functionality exposed by the shortcode might be accessible to users without the necessary permissions. While the plugin has a clean vulnerability history, the identified code signals and taint flows indicate areas that require immediate attention to mitigate potential risks.

Key Concerns

  • Low percentage of properly escaped outputs
  • Unsanitized paths found in taint analysis
  • No capability checks implemented
Vulnerabilities
None known

Event CLNDR Security Vulnerabilities

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

Event CLNDR Code Analysis

Dangerous Functions
0
Raw SQL Queries
0
32 prepared
Unescaped Output
46
9 escaped
Nonce Checks
2
Capability Checks
0
File Operations
4
External Requests
0
Bundled Libraries
0

SQL Query Safety

100% prepared32 total queries

Output Escaping

16% escaped55 total outputs
Data Flows
3 unsanitized

Data Flow Analysis

3 flows3 with unsanitized paths
admin_CLNDR_INSTANCES (clndr.php:351)
Source (user input) Sink (dangerous op) Sanitizer Transform Unsanitized Sanitized
Attack Surface

Event CLNDR Attack Surface

Entry Points1
Unprotected0

Shortcodes 1

[clndr] clndr.php:44
WordPress Hooks 8
actionplugins_loadedclndr.php:32
actionadmin_menuclndr.php:35
actionwp_enqueue_scriptsclndr.php:38
actionadmin_enqueue_scriptsclndr.php:41
filterwidget_textclndr.php:45
actionwp_print_footer_scriptsclndr.php:294
actionadmin_print_footer_scriptsclndr.php:953
actionadmin_print_footer_scriptsclndr.php:980
Maintenance & Trust

Event CLNDR Maintenance & Trust

Maintenance Signals

WordPress version tested4.7.32
Last updatedJan 3, 2018
PHP min version
Downloads6K

Community Trust

Rating100/100
Number of ratings6
Active installs70
Developer Profile

Event CLNDR Developer Profile

i4nd90

1 plugin · 70 total installs

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

How We Detect Event CLNDR

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

Asset Fingerprints

Asset Paths
/wp-content/plugins/event-clndr/css/clndr-styles.css
Script Paths
/wp-content/plugins/event-clndr/js/clndr.js/wp-content/plugins/event-clndr/js/moment.min.js/wp-content/plugins/event-clndr/js/underscore-min.js
Version Parameters
event-clndr/css/clndr-styles.css?ver=event-clndr/js/clndr.js?ver=event-clndr/js/moment.min.js?ver=event-clndr/js/underscore-min.js?ver=

HTML / DOM Fingerprints

CSS Classes
clndr-controlscurrent-monthclndr-navclndr-previous-buttonclndr-next-buttonclndr-griddays-of-the-weekheader-day+9 more
Data Attributes
id="<%= day.id %>"
JS Globals
momentunderscore
Shortcode Output
<div class="clndr-controls"><div class="current-month"><%= month %> <%= year %></div><div class="clndr-nav clndr-clearfix"><div class="clndr-previous-button">‹</div>
FAQ

Frequently Asked Questions about Event CLNDR