CVE-2024-31249: WPKube Subscribe To Comments Vulnerability

CVE-2024-31249 Overview

CVE-2024-31249 is a sensitive information disclosure vulnerability affecting the WPKube Subscribe To Comments Reloaded plugin for WordPress. The flaw is classified under [CWE-532] (Insertion of Sensitive Information into Log File) and impacts all plugin versions up to and including 220725. An unauthenticated remote attacker can retrieve sensitive data written to accessible log files over the network. The issue exposes confidentiality without requiring privileges or user interaction. Patchstack published an advisory tracking the vulnerability in the WordPress plugin ecosystem.

Critical Impact

Unauthenticated attackers can read sensitive information written to plugin log files, enabling reconnaissance and potential follow-on compromise of WordPress sites.

Affected Products

• WPKube Subscribe To Comments Reloaded WordPress plugin
• All versions from n/a through 220725
• WordPress sites with the affected plugin installed and active

Discovery Timeline

• 2024-04-10 - CVE-2024-31249 published to NVD
• 2026-04-28 - Last updated in NVD database

Technical Details for CVE-2024-31249

Vulnerability Analysis

The Subscribe To Comments Reloaded plugin writes sensitive runtime information into log files that are reachable over the network. Because the plugin does not restrict access to these log artifacts, any unauthenticated requester can retrieve their contents. Attackers can use the disclosed data to map application state, identify subscriber details, or harvest tokens used by comment subscription workflows. The vulnerability affects confidentiality of stored data without altering integrity or availability of the WordPress instance. The EPSS score of 0.757% (73rd percentile) indicates higher-than-average exploitation likelihood relative to other published CVEs.

Root Cause

The root cause is improper handling of log file contents and permissions, categorized as [CWE-532]. The plugin records sensitive data alongside operational messages and stores those logs in a location accessible through standard HTTP requests. No authentication or access control gates the log retrieval path.

Attack Vector

An attacker sends crafted HTTP requests to predictable log file paths exposed by the plugin installation directory. No authentication, privileges, or user interaction are required. Successful retrieval returns log contents containing subscriber identifiers, email addresses, or other operational data captured by the plugin. Refer to the Patchstack Vulnerability Advisory for advisory-level technical context.

Detection Methods for CVE-2024-31249

Indicators of Compromise

• Unauthenticated HTTP GET requests targeting plugin directories under wp-content/plugins/subscribe-to-comments-reloaded/
• Repeated access attempts to files with .log, .txt, or backup extensions inside the plugin path
• Outbound web requests from external scanners enumerating WordPress plugin paths

Detection Strategies

• Inspect web server access logs for requests retrieving plugin log artifacts with HTTP 200 responses
• Alert on access to static files within wp-content/plugins/subscribe-to-comments-reloaded/ from non-administrative IPs
• Use WordPress vulnerability scanners to identify installations running version 220725 or earlier

Monitoring Recommendations

• Forward WordPress and web server logs to a centralized analytics platform for query and correlation
• Track plugin inventory across WordPress estates and flag outdated Subscribe To Comments Reloaded installations
• Monitor for sudden spikes in requests against plugin directories indicative of mass scanning

How to Mitigate CVE-2024-31249

Immediate Actions Required

• Update the Subscribe To Comments Reloaded plugin to the latest available version beyond 220725
• Audit the plugin directory for exposed log files and remove or relocate them outside the webroot
• Rotate any credentials, tokens, or subscriber data that may have been exposed in the logs

Patch Information

Review the Patchstack Vulnerability Advisory for fixed version guidance. Apply the vendor-provided update through the WordPress plugin manager once it is verified for your environment.

Workarounds

• Deny direct HTTP access to .log and .txt files within the plugin directory using web server rules
• Restrict access to wp-content/plugins/subscribe-to-comments-reloaded/ paths via firewall or WAF rules
• Disable the plugin until a patched version is installed if log exposure cannot be remediated

# Apache .htaccess example to block log file access
<FilesMatch "\.(log|txt)$">
    Require all denied
</FilesMatch>