CVE-2021-4352 in JobSearch WP Job Board Plugin
Summary
by MITRE • 06/07/2023
The JobSearch WP Job Board plugin for WordPress is vulnerable to authorization bypass due to a missing capability check on the save_locsettings function in versions up to, and including, 1.8.1. This makes it possible for unauthenticated attackers to change the settings of the plugin.
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Analysis
by VulDB Data Team • 04/09/2026
The CVE-2021-4352 vulnerability affects the JobSearch WP Job Board plugin for WordPress, representing a critical authorization bypass flaw that undermines the security posture of affected websites. This vulnerability exists within the plugin's save_locsettings function, which fails to implement proper capability checks before allowing configuration modifications. The flaw specifically impacts versions up to and including 1.8.1, making a substantial portion of WordPress installations potentially vulnerable if they have not updated to newer releases. The absence of authentication verification creates a pathway for malicious actors to manipulate core plugin settings without proper authorization, fundamentally compromising the integrity of the WordPress environment.
The technical implementation of this vulnerability stems from the plugin's failure to validate user permissions before executing sensitive operations within the save_locsettings function. According to CWE-863, this represents a weakness in authorization where the system does not properly verify that the requesting entity has adequate access rights to perform the requested action. The vulnerability allows unauthenticated attackers to exploit the missing capability check and modify critical plugin configurations, potentially leading to unauthorized changes in job board settings, location configurations, and other administrative parameters. This flaw operates at the application level within the WordPress ecosystem, where proper access controls should prevent unauthorized modifications to core system settings.
The operational impact of CVE-2021-4352 extends beyond simple configuration changes, as attackers could potentially leverage this authorization bypass to establish persistent access or create malicious configurations that affect job posting functionality, user experience, and overall site integrity. From an attacker's perspective, this vulnerability aligns with ATT&CK technique T1078 which involves valid accounts and privileges to gain access to systems. The vulnerability enables adversaries to perform actions that should require administrative privileges, effectively allowing them to manipulate the plugin's operational parameters without proper authentication. This could result in service disruption, data manipulation, or even facilitate further exploitation through compromised plugin configurations that affect other system components.
Organizations affected by this vulnerability should prioritize immediate remediation through plugin updates to versions that address the missing capability check in the save_locsettings function. The recommended mitigation strategy involves implementing the latest plugin version that includes proper authorization controls and capability verification. Additionally, system administrators should conduct comprehensive security assessments to identify any unauthorized changes that may have occurred during the vulnerability window. Regular monitoring of plugin updates and adherence to security best practices for WordPress installations remains crucial for maintaining defensive posture. The vulnerability demonstrates the importance of implementing proper access control mechanisms and capability checks within web applications, particularly in content management systems where plugins can significantly impact overall security.