CVE-2025-48303 in Post Type Converter Plugin
Summary
by MITRE • 08/25/2025
Cross-Site Request Forgery (CSRF) vulnerability in Kevin Langley Jr. Post Type Converter allows Cross-Site Request Forgery.This issue affects Post Type Converter: from n/a through 0.6.
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Analysis
by VulDB Data Team • 08/25/2025
The Cross-Site Request Forgery vulnerability identified as CVE-2025-48303 resides within the Post Type Converter plugin developed by Kevin Langley Jr., representing a critical security flaw that undermines the integrity of web applications. This vulnerability specifically targets the plugin's handling of user requests, creating an environment where malicious actors can exploit the lack of proper authentication mechanisms to execute unauthorized actions on behalf of authenticated users. The affected version range spans from the initial release through version 0.6, indicating that users operating within this scope remain at risk of exploitation. The vulnerability manifests due to insufficient validation of request origins and the absence of anti-CSRF tokens, which are fundamental security controls designed to prevent unauthorized request execution.
The technical flaw underlying this CSRF vulnerability stems from the plugin's failure to implement proper cross-site request forgery protection measures. When users access the plugin's administrative interfaces or perform actions that modify post types, the system does not adequately verify that requests originate from legitimate sources within the same domain. This absence of validation creates a pathway for attackers to craft malicious requests that appear to come from authenticated users, leveraging the trust relationship between the user and the web application. The vulnerability operates at the application layer and specifically impacts the plugin's ability to distinguish between authorized and unauthorized requests, making it particularly dangerous for WordPress environments where the plugin is installed. According to CWE-352, this represents a classic cross-site request forgery implementation flaw that allows attackers to perform actions without user knowledge or consent.
The operational impact of this vulnerability extends beyond simple data manipulation, potentially enabling attackers to execute a wide range of malicious activities within the compromised WordPress environment. An attacker could leverage this flaw to convert post types without user consent, potentially altering content structure, modifying permissions, or even creating new posts with malicious content. The implications are particularly severe in multi-user environments where administrators may inadvertently trigger malicious requests through social engineering or compromised browser sessions. The vulnerability's exploitation could lead to data corruption, unauthorized content modification, and potential privilege escalation within the WordPress system. This type of vulnerability aligns with ATT&CK technique T1566, which describes social engineering tactics that can be used to manipulate users into performing actions that compromise security. Additionally, the vulnerability demonstrates characteristics consistent with T1213, which involves data access and manipulation through web application flaws.
Mitigation strategies for this CSRF vulnerability must address both immediate remediation and long-term security enhancements within the affected WordPress environment. The primary recommendation involves upgrading to the latest version of the Post Type Converter plugin where the vulnerability has been patched, as this represents the most direct solution to address the flaw. Administrators should also implement additional security measures such as enforcing strict content security policies and implementing proper anti-CSRF token mechanisms within the plugin's codebase. Network-level protections including web application firewalls and request validation can provide additional layers of defense against exploitation attempts. The implementation of proper session management and authentication controls should be reviewed to ensure that all user interactions with the plugin are properly validated. Organizations should also conduct regular security assessments of their WordPress installations to identify and remediate similar vulnerabilities across their entire software ecosystem, particularly focusing on plugins that handle sensitive data modifications and administrative functions.