CVE-2025-58015: Quiz Maker Information Disclosure Flaw

CVE-2025-58015 Overview

CVE-2025-58015 is a sensitive data exposure vulnerability affecting the Ays Pro Quiz Maker plugin for WordPress. This information disclosure flaw allows unauthenticated attackers to retrieve embedded sensitive system data from vulnerable WordPress installations running the affected plugin versions. The vulnerability stems from improper exposure of sensitive system information to an unauthorized control sphere, classified under CWE-497.

Critical Impact

Unauthenticated attackers can remotely access sensitive system information without any user interaction, potentially exposing configuration data, internal paths, or other sensitive details that could facilitate further attacks against the WordPress installation.

Affected Products

• Ays Pro Quiz Maker plugin for WordPress versions up to and including 6.7.0.65
• WordPress installations with the vulnerable Quiz Maker plugin active
• All configurations of ays-pro:quiz_maker prior to the patched version

Discovery Timeline

• 2025-09-22 - CVE-2025-58015 published to NVD
• 2026-04-01 - Last updated in NVD database

Technical Details for CVE-2025-58015

Vulnerability Analysis

This vulnerability represents a classic information disclosure issue where the Quiz Maker plugin inadvertently exposes sensitive system information to unauthorized users. The flaw allows attackers to retrieve embedded sensitive data through network-accessible endpoints without requiring authentication or user interaction.

The exposure occurs due to insufficient access controls on plugin functionality that handles or displays system information. When exploited, an attacker can extract data that should be restricted to authenticated administrators, potentially revealing internal configuration details, file paths, database information, or other sensitive system metadata.

Root Cause

The root cause of CVE-2025-58015 lies in the improper handling of sensitive system information within the Quiz Maker plugin. The plugin fails to implement adequate authorization checks before exposing certain data elements, allowing any unauthenticated remote user to access information that should be protected. This represents a violation of the principle of least privilege, where the application grants broader access to sensitive information than necessary for its intended functionality.

Attack Vector

The attack vector for this vulnerability is network-based, requiring no privileges or user interaction to exploit. An attacker can remotely target any WordPress site running the vulnerable Quiz Maker plugin versions. The exploitation pathway involves:

1. Identifying WordPress installations with the Quiz Maker plugin installed
2. Sending crafted requests to plugin endpoints that expose sensitive data
3. Parsing the response to extract embedded system information
4. Leveraging the disclosed information for reconnaissance or further attacks

The vulnerability is accessible via unauthenticated HTTP requests to the WordPress installation, making it particularly dangerous for internet-facing sites. Technical details regarding specific exploitation methods can be found in the Patchstack Vulnerability Report.

Detection Methods for CVE-2025-58015

Indicators of Compromise

• Unusual HTTP requests targeting Quiz Maker plugin endpoints from unknown IP addresses
• Unexpected access patterns to plugin-specific URLs or AJAX handlers
• Log entries showing repeated requests for plugin resources without valid session cookies
• Evidence of information harvesting behavior such as sequential enumeration requests

Detection Strategies

• Monitor WordPress access logs for unauthenticated requests to Quiz Maker plugin endpoints
• Implement Web Application Firewall (WAF) rules to detect suspicious query patterns targeting the plugin
• Configure intrusion detection systems to alert on reconnaissance-style traffic patterns
• Review server logs for anomalous requests that may indicate exploitation attempts

Monitoring Recommendations

• Enable detailed logging for all WordPress plugin activity and API calls
• Set up alerts for high-volume requests to Quiz Maker plugin resources from single IP addresses
• Regularly audit access logs for patterns consistent with information disclosure exploitation
• Implement real-time monitoring of WordPress security events using security plugins or SIEM integration

How to Mitigate CVE-2025-58015

Immediate Actions Required

• Update the Ays Pro Quiz Maker plugin to the latest patched version immediately
• Audit WordPress installations to identify all instances of the vulnerable plugin
• Review access logs for signs of prior exploitation attempts
• Consider temporarily deactivating the plugin on critical sites until patching is complete

Patch Information

Organizations should update the Quiz Maker plugin beyond version 6.7.0.65 to remediate this vulnerability. Plugin updates can be applied through the WordPress admin dashboard under Plugins > Installed Plugins > Update Available. For managed WordPress hosting environments, coordinate with your hosting provider to ensure timely updates across all affected installations.

For detailed vulnerability information and patch availability, refer to the Patchstack Vulnerability Report.

Workarounds

• Restrict access to the WordPress wp-admin directory and plugin endpoints using IP whitelisting if updates cannot be applied immediately
• Implement Web Application Firewall rules to block suspicious requests to Quiz Maker plugin endpoints
• Temporarily deactivate the Quiz Maker plugin on production sites until a patched version can be deployed
• Enable WordPress security hardening measures and consider using security plugins that provide additional access controls

# Example: Restrict access to plugin endpoints via .htaccess
# Add to WordPress root .htaccess file

<IfModule mod_rewrite.c>
RewriteEngine On
# Block direct access to quiz-maker plugin files from untrusted IPs
RewriteCond %{REQUEST_URI} ^/wp-content/plugins/quiz-maker/ [NC]
RewriteCond %{REMOTE_ADDR} !^192\.168\.1\. # Replace with trusted IP range
RewriteRule .* - [F,L]
</IfModule>