CVE-2026-32478 in WP Project Manager Pro Plugin
Summary
by MITRE • 08/24/2026
Subscriber SQL Injection in WP Project Manager Pro <= 4.0.1 versions.
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Analysis
by VulDB Data Team • 08/24/2026
The vulnerability identified as a subscriber-level SQL injection flaw within the WP Project Manager Pro plugin, specifically affecting versions up to and including 4.0.1, represents a critical security deficiency that allows unauthenticated or low-privileged users to manipulate backend database queries. This type of vulnerability falls under the Common Weakness Enumeration category CWE-89, which defines Improper Neutralization of Special Elements used in an SQL Command. In this context, the flaw typically arises from insufficient input validation and sanitization mechanisms when processing user-supplied data submitted through various endpoints within the plugin's interface. Because WordPress plugins often handle sensitive project management data including task assignments, file uploads, and team communications, a successful exploitation can lead to severe consequences for both individual users and organizations relying on this software for operational continuity.
The technical mechanism behind this vulnerability involves the direct concatenation of unsanitized user input into SQL query strings without adequate escaping or parameterization. When an attacker submits crafted HTTP requests containing malicious SQL payloads, such as UNION-based injection techniques or blind boolean-based injections, they can bypass existing authentication checks due to the subscriber-level access requirement being insufficiently enforced at the database interaction layer. This allows attackers to extract sensitive information from the WordPress database, including administrator usernames and password hashes, which are often stored in plaintext or weakly hashed formats depending on the site's configuration. The ability to read arbitrary data compromises the confidentiality of the entire system, while potential write capabilities could allow for data modification or deletion, impacting integrity and availability.
From an operational perspective, this vulnerability poses a significant risk because it does not require high-level administrative privileges to exploit. Subscribers are typically low-privilege users who may be invited by project managers or team leads, meaning that any user with even minimal access can potentially compromise the entire WordPress installation if they choose to act maliciously. The impact extends beyond data theft; attackers could use extracted credentials for further lateral movement within a network, perform defacement of public-facing pages, or install web shells to maintain persistent access. This aligns with MITRE ATT&CK techniques such as T1059 Command and Scripting Interpreter if the injection allows for command execution via database functions like INTO OUTFILE, and T1078 Valid Accounts when used to escalate privileges after credential harvesting.
Mitigation strategies must prioritize immediate remediation through software updates or manual code intervention. The most effective solution is to upgrade WP Project Manager Pro to a version greater than 4.0.1 where the vendor has presumably addressed these input validation flaws by implementing prepared statements using PHP Data Objects (PDO) or MySQLi with bound parameters, ensuring that user inputs are treated strictly as data rather than executable code. For sites unable to update immediately due to compatibility constraints, temporary mitigations include deploying a Web Application Firewall configured to detect and block common SQL injection patterns in POST requests targeting the plugin's endpoints. Additionally, enforcing strict role-based access control policies and auditing all custom plugins for similar vulnerabilities can reduce the attack surface. Regular security audits and penetration testing are recommended to identify other potential weaknesses before they can be exploited by malicious actors seeking to compromise organizational data assets.