CVE-2023-0504 in HT Politic Plugin
Summary
by MITRE • 03/27/2023
The HT Politic WordPress plugin before 2.3.8 does not have CSRF check when activating plugins, which could allow attackers to make logged in admins activate arbitrary plugins present on the blog via a CSRF attack
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Analysis
by VulDB Data Team • 04/15/2023
The CVE-2023-0504 vulnerability affects the HT Politic WordPress plugin version 2.3.7 and earlier, representing a critical cross-site request forgery weakness that undermines the security posture of affected WordPress installations. This vulnerability stems from the absence of proper CSRF protection mechanisms within the plugin's activation functionality, creating an exploitable vector for malicious actors to manipulate administrative users. The flaw specifically occurs during the plugin activation process where the system fails to validate the authenticity of requests originating from legitimate administrators, thereby allowing unauthorized execution of plugin activation commands.
The technical implementation of this vulnerability resides in the plugin's failure to implement proper nonce validation or referer checking mechanisms when processing plugin activation requests. In WordPress environments, CSRF protection typically relies on the use of cryptographic nonces that are generated for specific user sessions and validated against subsequent requests to ensure that actions originate from legitimate administrative interfaces. The HT Politic plugin's omission of these security controls creates a scenario where an attacker can craft malicious payloads that, when executed through a victim administrator's browser, trigger unauthorized plugin activation without the administrator's knowledge or consent. This represents a direct violation of the principle of least privilege and demonstrates a fundamental flaw in the plugin's security architecture.
The operational impact of this vulnerability extends beyond simple unauthorized plugin activation, as it provides attackers with a potential foothold for further exploitation within the WordPress environment. When an administrator activates a malicious plugin, it can introduce backdoors, data exfiltration capabilities, or other malicious functionalities that persist on the compromised system. The vulnerability also enables attackers to escalate their privileges by installing plugins that provide additional administrative capabilities or by leveraging the activated plugin as a staging area for more sophisticated attacks. This threat vector aligns with ATT&CK technique T1105 for remote access and T1059 for command and scripting interpreter usage, as the initial compromise can lead to persistent access and further system compromise.
Organizations affected by this vulnerability should immediately update to version 2.3.8 or later of the HT Politic plugin to remediate the CSRF weakness. The patch should include proper nonce validation mechanisms that ensure all plugin activation requests are authenticated and originate from legitimate administrative sessions. Security administrators should also conduct comprehensive audits of their WordPress installations to identify any other plugins that may exhibit similar CSRF vulnerabilities, as the presence of such flaws in multiple components can compound the overall security risk. Additionally, implementing web application firewalls and monitoring for suspicious activation patterns can provide additional layers of defense against exploitation attempts. This vulnerability highlights the critical importance of proper input validation and authentication mechanisms in web applications, particularly in content management systems where administrative functions are frequently targeted by attackers, and serves as a reminder of the necessity for regular security assessments and prompt patch management procedures in maintaining secure digital environments.