CVE-2025-58872 Overview
CVE-2025-58872 is a broken access control vulnerability in the Simple Price Calculator WordPress plugin developed by premiumbizthemes. The flaw allows authenticated users with low privileges to retrieve embedded sensitive data through insufficient authorization checks. The vulnerability affects all versions of the simple-price-calculator-basic plugin up to and including version 1.3. Patchstack cataloged the issue under CWE-201: Insertion of Sensitive Information Into Sent Data.
Critical Impact
Authenticated attackers with low-level privileges can retrieve sensitive data embedded in plugin responses, exposing confidential information stored within WordPress sites running the affected plugin.
Affected Products
- premiumbizthemes Simple Price Calculator plugin for WordPress
- Plugin slug: simple-price-calculator-basic
- All versions from initial release through 1.3
Discovery Timeline
- 2025-09-05 - CVE-2025-58872 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-58872
Vulnerability Analysis
The Simple Price Calculator plugin fails to enforce proper authorization checks before returning data through its endpoints. An authenticated user with minimal permissions can trigger requests that return sensitive information the plugin should restrict to higher-privileged roles. The exploitation requires network access and low-privilege authentication, with no user interaction needed.
The issue is categorized under CWE-201, which covers cases where sensitive information is embedded in data sent to a user who should not receive it. In this plugin, the responses contain configuration or content data that leak beyond the intended audience boundary.
The Exploit Prediction Scoring System (EPSS) currently rates this vulnerability with a low probability of near-term exploitation, and no public proof-of-concept has been released. However, WordPress plugins with broken access control patterns are frequently probed by opportunistic scanners.
Root Cause
The root cause is missing or insufficient capability checks within plugin request handlers. WordPress plugins are expected to call functions such as current_user_can() before returning privileged data. The affected handlers in Simple Price Calculator do not validate the requester's role, treating any authenticated session as sufficient authorization.
Attack Vector
An attacker with any authenticated WordPress account, including a subscriber-level user on sites permitting open registration, can send crafted requests to the plugin's endpoints. The server returns embedded sensitive data without verifying the caller's permissions. See the Patchstack Vulnerability Report for additional technical context.
Detection Methods for CVE-2025-58872
Indicators of Compromise
- Unusual volume of authenticated requests to Simple Price Calculator plugin endpoints under /wp-admin/admin-ajax.php or REST routes registered by the plugin.
- Access to plugin-related endpoints originating from low-privilege user accounts such as subscribers.
- Newly registered WordPress accounts followed shortly by requests targeting the plugin.
Detection Strategies
- Review WordPress access logs for repeated requests to simple-price-calculator-basic handlers from non-administrative sessions.
- Enable plugin audit logging to record which user roles are invoking calculator-related actions.
- Correlate authentication events with plugin endpoint access to identify low-privilege accounts retrieving restricted data.
Monitoring Recommendations
- Alert on HTTP responses from plugin endpoints that exceed expected payload sizes, indicating potential data leakage.
- Monitor WordPress user registration spikes on sites that permit open enrollment.
- Track failed and successful authentication events tied to accounts that immediately access plugin functionality.
How to Mitigate CVE-2025-58872
Immediate Actions Required
- Disable the Simple Price Calculator plugin on affected WordPress sites until a patched version is verified.
- Restrict WordPress registration to trusted users and disable open subscriber registration where possible.
- Audit existing user accounts and remove or downgrade any unused low-privilege accounts.
- Review any data exposed through plugin endpoints to determine whether disclosure has occurred.
Patch Information
At the time of publication, no patched version beyond 1.3 has been confirmed in the vendor advisory. Site administrators should monitor the Patchstack Vulnerability Report and the plugin repository for updates. Uninstall the plugin if a fix is not available.
Workarounds
- Remove the plugin from production sites and replace it with an alternative price calculator solution that enforces capability checks.
- Deploy a web application firewall (WAF) rule blocking requests to plugin AJAX and REST endpoints from users below the editor role.
- Enforce two-factor authentication on all WordPress accounts to reduce the risk of low-privilege account compromise.
# Disable the vulnerable plugin via WP-CLI
wp plugin deactivate simple-price-calculator-basic
wp plugin delete simple-price-calculator-basic
# Disable open user registration in WordPress
wp option update users_can_register 0
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.