ChimpPress Security & Risk Analysis

wordpress.org/plugins/chimppress

ChimpPress is a new way to manage your MailChimp campaigns right from your WordPress Dashboard.

10 active installs v0.8.9 PHP + WP 3.0+ Updated Dec 14, 2012
campaignemailmail-chimpmanagesend
85
A · Safe
CVEs total0
Unpatched0
Last CVENever
Download
Safety Verdict

Is ChimpPress Safe to Use in 2026?

Generally Safe

Score 85/100

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

No known CVEs Updated 13yr ago
Risk Assessment

The "chimppress" plugin version 0.8.9 exhibits a mixed security posture. While it demonstrates good practices such as using prepared statements for all SQL queries and only a limited number of file operations, significant concerns exist regarding its attack surface and code sanitization. The presence of an unprotected AJAX handler represents a direct entry point for potential attackers, and the use of `unserialize` without proper validation is a critical vulnerability, especially when combined with unsanitized input paths identified in the taint analysis. The plugin's lack of known historical vulnerabilities is a positive indicator, suggesting the developers may have a general awareness of security, but the current analysis reveals significant gaps in fundamental security controls like capability checks and proper output escaping.

Key Concerns

  • Unprotected AJAX handler
  • Dangerous function: unserialize without validation
  • Taint flows with unsanitized paths
  • Low percentage of properly escaped output
  • No capability checks on entry points
Vulnerabilities
None known

ChimpPress Security Vulnerabilities

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

ChimpPress Code Analysis

Dangerous Functions
1
Raw SQL Queries
0
0 prepared
Unescaped Output
155
16 escaped
Nonce Checks
1
Capability Checks
0
File Operations
2
External Requests
0
Bundled Libraries
0

Dangerous Functions Found

unserialize$serial = unserialize($response);includes\class-MCAPI.php:2464

Output Escaping

9% escaped171 total outputs
Data Flows
9 unsanitized

Data Flow Analysis

11 flows9 with unsanitized paths
get_campaign_html_callback (includes\class-ajax.php:18)
Source (user input) Sink (dangerous op) Sanitizer Transform Unsanitized Sanitized
Attack Surface
1 unprotected

ChimpPress Attack Surface

Entry Points1
Unprotected1

AJAX Handlers 1

authwp_ajax_get_campaign_htmlincludes\class-ajax.php:13
WordPress Hooks 21
actionadmin_noticeschimppress.php:46
actionadmin_initchimppress.php:77
actionnew_to_publishincludes\class-auto-send.php:21
actiondraft_to_publishincludes\class-auto-send.php:22
actionauto-draft_to_publishincludes\class-auto-send.php:23
actionpending_to_publishincludes\class-auto-send.php:24
actionprivate_to_publishincludes\class-auto-send.php:25
actionfuture_to_publishincludes\class-auto-send.php:26
actiontemplate_redirectincludes\class-chimppress-display.php:13
actionadmin_initincludes\class-chimppress-meta-boxes.php:12
actionpost_updatedincludes\class-chimppress-meta-boxes.php:13
actioninitincludes\class-chimppress-setup.php:18
actionadmin_menuincludes\class-chimppress-setup.php:19
actionmanage_posts_custom_columnincludes\class-chimppress-setup.php:20
actionadmin_print_scriptsincludes\class-chimppress-setup.php:21
actionadmin_print_stylesincludes\class-chimppress-setup.php:22
filtermanage_edit-chimppress_columnsincludes\class-chimppress-setup.php:24
actioncp_templatesincludes\class-chimppress-templates.php:14
actioncp_widgetsincludes\class-chimppress-widgets.php:11
actioncp_widgetsincludes\class-chimppress-widgets.php:12
filterattachment_fields_to_editincludes\class-media-upload-edit.php:21
Maintenance & Trust

ChimpPress Maintenance & Trust

Maintenance Signals

WordPress version tested3.2.1
Last updatedDec 14, 2012
PHP min version
Downloads5K

Community Trust

Rating40/100
Number of ratings1
Active installs10
Developer Profile

ChimpPress Developer Profile

Andy Charrington

5 plugins · 900 total installs

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

How We Detect ChimpPress

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

Asset Fingerprints

Asset Paths
/wp-content/plugins/chimppress/js/edit-campaign.js/wp-content/plugins/chimppress/js/upload-media.js/wp-content/plugins/chimppress/js/campaign-stats.js/wp-content/plugins/chimppress/js/campaign-settings.js/wp-content/plugins/chimppress/js/campaign-feedback.js/wp-content/plugins/chimppress/js/campaign-editor.js/wp-content/plugins/chimppress/css/admin-style.css/wp-content/plugins/chimppress/css/edit-campaign.css+2 more
Script Paths
/wp-content/plugins/chimppress/js/edit-campaign.js/wp-content/plugins/chimppress/js/upload-media.js/wp-content/plugins/chimppress/js/campaign-stats.js/wp-content/plugins/chimppress/js/campaign-settings.js/wp-content/plugins/chimppress/js/campaign-feedback.js/wp-content/plugins/chimppress/js/campaign-editor.js
Version Parameters
chimppress/css/admin-style.css?ver=chimppress/css/edit-campaign.css?ver=chimppress/js/edit-campaign.js?ver=chimppress/js/upload-media.js?ver=chimppress/js/campaign-stats.js?ver=chimppress/js/campaign-settings.js?ver=chimppress/js/campaign-feedback.js?ver=chimppress/js/campaign-editor.js?ver=

HTML / DOM Fingerprints

CSS Classes
chimppress_typechimppress_statuschimppress_sendtimechimppress_emailssentchimppress_template_post_typechimppress_template_taxonomieschimppress-mailchimp-api-functionschimppress-setup+10 more
HTML Comments
<!-- Begin MailChimp Signup Form --><!--End mc_embed_signup-->
Data Attributes
data-chimppress-campaign-iddata-chimppress-campaign-type
JS Globals
window.chimppress_edit_campaign_varswindow.chimppress_upload_media_varswindow.chimppress_stats_varswindow.chimppress_settings_varswindow.chimppress_feedback_varswindow.chimppress_editor_vars
FAQ

Frequently Asked Questions about ChimpPress