CVE-2026-2257 in GetGenie Plugin
Summary
by MITRE • 03/13/2026
The GetGenie plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.3.2 due to missing validation on a user controlled key in the `action` function. This makes it possible for authenticated attackers, with Author-level access and above, to update post metadata for arbitrary posts. Combined with a lack of input sanitization, this leads to Stored Cross-Site Scripting when a higher-privileged user (such as an Administrator) views the affected post's "Competitor" tab in the GetGenie sidebar.
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Analysis
by VulDB Data Team • 03/20/2026
The vulnerability identified as CVE-2026-2257 affects the GetGenie plugin for WordPress, specifically targeting versions up to and including 4.3.2. This represents a critical security flaw that exploits an insecure direct object reference vulnerability, classified under CWE-639, which allows unauthorized access to resources through manipulation of object references. The vulnerability exists within the plugin's action function where insufficient validation occurs on user-controlled keys, creating a pathway for malicious actors to manipulate system behavior. The flaw is particularly concerning because it requires only authenticated access with Author-level privileges or higher, making it accessible to users who already have significant permissions within the WordPress environment.
The technical implementation of this vulnerability stems from the absence of proper input validation and sanitization within the plugin's codebase. When an authenticated attacker with Author-level access or above executes malicious actions through the vulnerable function, they can manipulate post metadata for any post within the system. This occurs because the plugin fails to validate the user-controlled key parameter, allowing attackers to specify arbitrary post IDs and modify their metadata without proper authorization checks. The vulnerability demonstrates a classic case of insufficient authorization validation, where the system assumes that legitimate users will not attempt to access or modify resources outside their intended scope.
The operational impact of CVE-2026-2257 extends beyond simple unauthorized data modification, creating a pathway for more severe security consequences including stored cross-site scripting attacks. When a higher-privileged user such as an Administrator views the affected post's "Competitor" tab in the GetGenie sidebar, the maliciously injected script code executes within the context of that privileged user's browser session. This scenario represents a typical attack pattern that aligns with ATT&CK technique T1566.001 for initial access through malicious content, and T1059.001 for command and scripting interpreter execution. The stored XSS vulnerability allows attackers to execute malicious scripts in the browser of any user who views the compromised post, potentially leading to session hijacking, credential theft, or further system compromise.
The security implications of this vulnerability are particularly severe given the combination of authentication requirements and the potential for privilege escalation through XSS exploitation. Attackers can leverage the initial access through Author-level privileges to create persistent backdoors or exfiltrate sensitive information through the stored XSS vector. This vulnerability also demonstrates poor input sanitization practices that align with CWE-116, indicating inadequate handling of user-supplied data that can lead to various downstream security issues. The attack surface is further expanded by the fact that the vulnerability affects the plugin's sidebar functionality, making it accessible through normal user interface interactions rather than requiring specialized attack vectors. Organizations using affected versions of the GetGenie plugin should immediately implement mitigations including plugin updates, input validation patches, and enhanced monitoring of post metadata modifications to prevent exploitation of this vulnerability.