CVE-2017-9603 in WP Jobs Plugin
Summary
by MITRE
SQL injection vulnerability in the WP Jobs plugin before 1.5 for WordPress allows authenticated users to execute arbitrary SQL commands via the jobid parameter to wp-admin/edit.php.
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Analysis
by VulDB Data Team • 11/24/2025
The CVE-2017-9603 vulnerability represents a critical sql injection flaw within the WP Jobs plugin for WordPress systems. This vulnerability affects versions prior to 1.5 and specifically targets the administrative interface of the plugin. The flaw exists in the way the plugin processes user input through the jobid parameter within the wp-admin/edit.php endpoint, creating an exploitable condition that can be leveraged by authenticated users with sufficient privileges to manipulate database operations.
The technical implementation of this vulnerability stems from improper input validation and sanitization within the plugin's backend processing logic. When an authenticated user submits a jobid parameter through the administrative interface, the plugin fails to adequately sanitize this input before incorporating it into sql query constructions. This oversight allows maliciously crafted input to be interpreted as part of the sql command rather than as data, enabling attackers to inject arbitrary sql code that executes within the context of the database connection. The vulnerability specifically manifests when the plugin handles the jobid parameter in the wp-admin/edit.php file, which is commonly used for managing job listings within the wordpress administration panel.
The operational impact of this vulnerability extends beyond simple data manipulation, as it provides attackers with the ability to execute arbitrary sql commands that can result in complete database compromise. An authenticated attacker with access to the wp jobs plugin administrative interface can leverage this vulnerability to extract sensitive information from the database, modify existing job listings, delete critical records, or even escalate privileges within the wordpress installation. The vulnerability is particularly concerning because it requires only authentication to the wordpress admin panel, which many organizations may not adequately protect or monitor. This allows attackers to operate within the legitimate administrative context, making detection more difficult and potentially enabling persistent access to the system.
From a cybersecurity perspective, this vulnerability aligns with CWE-89 which defines sql injection as the improper handling of sql command construction, and maps to several ATT&CK techniques including T1078 for valid accounts and T1046 for network service scanning. The attack vector demonstrates how authenticated access can be exploited to bypass traditional perimeter security measures, emphasizing the importance of internal access controls and principle of least privilege. Organizations should implement immediate patching of the wp jobs plugin to version 1.5 or later, which includes proper input sanitization and parameterized query implementations. Additionally, security monitoring should focus on unusual administrative activities within the wp jobs plugin, particularly around jobid parameter usage, and network segmentation should be implemented to limit administrative access to critical systems.
Mitigation strategies should include comprehensive patch management procedures, regular security audits of wordpress plugins, and implementation of web application firewalls to detect and block malicious sql injection attempts. The vulnerability also highlights the necessity of maintaining updated security practices, as many organizations may not regularly update their plugin ecosystems, leaving known vulnerabilities exposed. Security teams should also consider implementing database activity monitoring and access logging to detect unauthorized sql command execution attempts, while establishing clear procedures for verifying plugin integrity and conducting vulnerability assessments of third-party components used in wordpress installations.