{"id":82384,"date":"2025-10-10T03:24:21","date_gmt":"2025-10-10T03:24:21","guid":{"rendered":""},"modified":"2025-11-01T11:35:30","modified_gmt":"2025-11-01T17:35:30","slug":"cve-2025-6388-critical-authentication-bypass-vulnerability-in-spirit-framework-wordpress-plugin","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-6388-critical-authentication-bypass-vulnerability-in-spirit-framework-wordpress-plugin\/","title":{"rendered":"CVE-2025-6388: Critical Authentication Bypass Vulnerability in Spirit Framework WordPress Plugin<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The cybersecurity world is once again on high alert with the recent discovery of a critical vulnerability in the Spirit Framework plugin for WordPress. This vulnerability, designated as CVE-2025-6388, affects all versions of the plugin up to, and including, version 1.2.14. As WordPress is one of the most popular content management systems<\/a> globally, this vulnerability poses a significant risk to many websites, potentially leading to system compromise or data leakage.
\nThe gravity of this vulnerability stems from its potential to bypass authentication<\/a>, allowing malicious actors to log in as any user, including administrators, as long as they have access to the administrator’s username. This could directly lead to a total system compromise<\/a>, making it a vulnerability that cannot be ignored.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-6388
\nSeverity: Critical (9.8 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise or data leakage due to authentication bypass<\/a><\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Spirit Framework WordPress Plugin<\/a> | Up to and including 1.2.14<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The CVE-2025-6388 exploit takes advantage of an oversight in the custom_actions() function of the Spirit Framework WordPress plugin<\/a>. This function, designed to authenticate users<\/a>, fails to appropriately validate a user’s identity before granting them access. As a result, an unauthenticated attacker who knows an admin’s username can bypass<\/a> the authentication system and gain access to the site with administrative privileges.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

To understand how this exploit might work, consider the following conceptual example. This is a simplified representation of how an HTTP request to the vulnerable<\/a> endpoint might look like:<\/p>\n

POST \/wp-login.php HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\nlog=admin&pwd='' OR '1'='1'&wp-submit=Log+In<\/code><\/pre>\n
In this example, the attacker is attempting to log in as the “admin” user without knowing the password. The ‘pwd’ parameter in the POST request is set to a SQL injection<\/a> payload that renders the password check useless, thereby bypassing the authentication.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
Until a patch is released by the vendor, website administrators can use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to mitigate the risk of exploitation. Once the patch becomes available, it should be applied immediately to prevent potential system<\/a> compromise or data leakage. Regularly updating your WordPress plugins and themes will also help protect your site from similar vulnerabilities<\/a> in the future.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The cybersecurity world is once again on high alert with the recent discovery of a critical vulnerability in the Spirit Framework plugin for WordPress. This vulnerability, designated as CVE-2025-6388, affects all versions of the plugin up to, and including, version 1.2.14. As WordPress is one of the most popular content management systems globally, this […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[75,74],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-82384","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-authentication-bypass","attack_vector-sql-injection"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t