CVE-2025-7683 Overview
CVE-2025-7683 is a Cross-Site Request Forgery (CSRF) vulnerability in the LatestCheckins plugin for WordPress. The flaw affects all versions up to and including 1. The plugin fails to implement proper nonce validation on the LatestCheckins administrative page. Unauthenticated attackers can update plugin settings and inject malicious web scripts through forged requests. Exploitation requires tricking a site administrator into clicking a crafted link or visiting a malicious page. The issue is tracked under CWE-352.
Critical Impact
Successful exploitation allows attackers to modify plugin settings and inject stored scripts into administrative contexts, enabling persistent Cross-Site Scripting against WordPress sites.
Affected Products
- WordPress LatestCheckins plugin — all versions up to and including 1
- WordPress installations running the vulnerable plugin
- Administrative sessions of authenticated WordPress users
Discovery Timeline
- 2025-08-16 - CVE-2025-7683 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-7683
Vulnerability Analysis
The LatestCheckins plugin exposes an administrative settings page implemented in wzw-admin.php. This page processes state-changing requests without verifying a WordPress nonce token. Nonces are the standard WordPress mechanism for confirming that a request originated from a legitimate user interface. Their absence allows any external site to submit requests on behalf of an authenticated administrator.
Because the settings values are later rendered in administrative pages without proper output encoding, an attacker can chain the CSRF with stored Cross-Site Scripting (XSS). This escalates the impact from configuration tampering to arbitrary JavaScript execution in the administrator's browser session.
Root Cause
The root cause is missing or incorrect nonce validation on POST handlers in wzw-admin.php. The plugin does not call wp_verify_nonce() or check_admin_referer() before applying submitted settings values. It also lacks capability checks that would restrict the handler to authenticated administrators only.
Attack Vector
The attack is delivered over the network and requires user interaction. An attacker hosts a malicious page containing an auto-submitting form or image tag targeting the plugin's admin endpoint. When an authenticated WordPress administrator visits the attacker-controlled resource, the browser attaches the administrator's session cookies to the forged request. The plugin accepts the request as legitimate and persists attacker-controlled values, including script payloads.
No authenticated exploit code has been published. Refer to the WordPress Plugin Code Review and Wordfence Vulnerability Intelligence advisories for additional technical context.
Detection Methods for CVE-2025-7683
Indicators of Compromise
- Unexpected modifications to LatestCheckins plugin settings that administrators did not initiate
- Presence of <script> tags, event handlers, or external JavaScript URLs inside plugin-stored option values
- WordPress wp_options rows tied to the plugin containing HTML or JavaScript payloads
- Referer headers on admin POSTs to wzw-admin.php originating from external domains
Detection Strategies
- Review web server access logs for POST requests to LatestCheckins admin endpoints with off-site Referer values
- Query the WordPress database for plugin option keys containing script markup or suspicious URLs
- Monitor for administrator browser sessions loading unexpected external scripts after visiting untrusted links
Monitoring Recommendations
- Enable a Web Application Firewall (WAF) rule that requires a valid WordPress nonce parameter on plugin admin requests
- Audit installed plugins for the presence and version of LatestCheckins across all managed WordPress sites
- Alert on changes to plugin configuration rows in the wp_options table outside of scheduled maintenance windows
How to Mitigate CVE-2025-7683
Immediate Actions Required
- Deactivate and remove the LatestCheckins plugin until a patched version is published by the maintainer
- Audit plugin settings and remove any injected script content or suspicious URLs
- Force a password reset for all WordPress administrator accounts that may have visited untrusted links
Patch Information
No fixed version has been identified in the enriched CVE data. The plugin listing is available at WordPress Latest Plugin Checkins. Site owners should verify the maintainer's release notes for any post-disclosure update before reinstalling the plugin.
Workarounds
- Remove the plugin entirely if a patched version is not available
- Restrict access to /wp-admin/ using IP allow-listing or an authenticating reverse proxy to reduce CSRF exposure
- Require administrators to use a dedicated browser profile for WordPress administration to isolate session cookies
- Deploy a WAF signature that blocks POST requests to the plugin's admin page lacking a valid _wpnonce parameter
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
