Full Calendar Js Security & Risk Analysis

wordpress.org/plugins/full-calendar-js

Display multiple Calendar XML feeds into a jquery calendar. Works with Google Calendar and others.

30 active installs v1.6 PHP + WP 2.8.6+ Updated Apr 23, 2014
calendarfullfullcalendargooglexml
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
Download
Safety Verdict

Is Full Calendar Js Safe to Use in 2026?

Generally Safe

Score 85/100

Full Calendar Js has no known CVEs and is actively maintained. It's a solid choice for most WordPress installations.

No known CVEs Updated 11yr ago
Risk Assessment

The "full-calendar-js" v1.6 plugin exhibits a mixed security posture. On the positive side, the static analysis reveals a small attack surface with no unprotected entry points, no dangerous functions, and all SQL queries utilizing prepared statements. There are also no recorded vulnerabilities (CVEs) for this plugin, suggesting a relatively stable history. However, a significant concern arises from the complete lack of output escaping. With 22 total outputs and 0% properly escaped, this opens the door to potential cross-site scripting (XSS) vulnerabilities, where malicious code could be injected into the frontend through user-supplied data displayed by the plugin.

The absence of taint analysis results and the low number of entry points (solely a shortcode) limit the ability to identify complex injection or path traversal vulnerabilities. The lack of nonce checks and capability checks on the identified shortcode, while not explicitly flagged as a risk due to the lack of dynamic analysis, could become a concern if the shortcode handles user-provided data in a sensitive manner. Overall, while the plugin demonstrates good practices in database interaction and has a clean vulnerability history, the critical deficiency in output sanitization presents a notable risk.

Key Concerns

  • 0% output escaping
  • No capability checks on shortcode
  • No nonce checks on shortcode
Vulnerabilities
None known

Full Calendar Js Security Vulnerabilities

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

Full Calendar Js Code Analysis

Dangerous Functions
0
Raw SQL Queries
0
0 prepared
Unescaped Output
22
0 escaped
Nonce Checks
0
Capability Checks
0
File Operations
0
External Requests
0
Bundled Libraries
0

Output Escaping

0% escaped22 total outputs
Attack Surface

Full Calendar Js Attack Surface

Entry Points1
Unprotected0

Shortcodes 1

[fcal] Full-Calendar-Js.php:286
WordPress Hooks 5
actionwp_enqueue_scriptsFull-Calendar-Js.php:57
actionwp_headFull-Calendar-Js.php:142
actionadmin_initFull-Calendar-Js.php:152
actionadmin_menuFull-Calendar-Js.php:154
actioninitFull-Calendar-Js.php:288
Maintenance & Trust

Full Calendar Js Maintenance & Trust

Maintenance Signals

WordPress version tested3.9.40
Last updatedApr 23, 2014
PHP min version
Downloads7K

Community Trust

Rating86/100
Number of ratings3
Active installs30
Developer Profile

Full Calendar Js Developer Profile

Cerzky

1 plugin · 30 total installs

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

How We Detect Full Calendar Js

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

Asset Fingerprints

Asset Paths
/wp-content/plugins/full-calendar-js/js/fullcalendar-1.5.4/fullcalendar/fullcalendar.css/wp-content/plugins/full-calendar-js/js/fullcalendar-1.5.4/fullcalendar/fullcalendar.js/wp-content/plugins/full-calendar-js/js/fullcalendar-1.5.4/fullcalendar/gcal.js/wp-content/plugins/full-calendar-js/js/fullcalendar-1.5.4/fullcalendar/fullcalendaragendamod.js/wp-content/plugins/full-calendar-js/js/fullcalendar-1.5.4/fullcalendar/fullcalendaroriginal.js/wp-content/plugins/full-calendar-js/js/fullcalendar-1.5.4/fullcalendar/moment.js
Script Paths
js/fullcalendar-1.5.4/fullcalendar/fullcalendar.cssjs/fullcalendar-1.5.4/fullcalendar/fullcalendar.jsjs/fullcalendar-1.5.4/fullcalendar/gcal.jsjs/fullcalendar-1.5.4/fullcalendar/fullcalendaragendamod.jsjs/fullcalendar-1.5.4/fullcalendar/fullcalendaroriginal.jsjs/fullcalendar-1.5.4/fullcalendar/moment.js

HTML / DOM Fingerprints

CSS Classes
gcal-event
FAQ

Frequently Asked Questions about Full Calendar Js