CVE-2026-62028 in Before After Image Comparison Plugin
Summary
by MITRE • 10/09/2026
Missing Authorization vulnerability in bPlugins Before After Image Comparison – Image comparison for WP before-after-image-compare allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Before After Image Comparison – Image comparison for WP: from n/a through 1.1.21.
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Analysis
by VulDB Data Team • 10/09/2026
The vulnerability identified in the bPlugins Before After Image Comparison WordPress plugin, specifically affecting versions up to and including 1.1.21, represents a critical failure in access control mechanisms that allows unauthorized users to perform actions or access resources without proper authentication or authorization checks. This flaw is categorized under CWE-862, which defines Missing Authorization as the absence of an essential permission check for a given action within a software application. In the context of this plugin, the security architecture fails to verify whether the user initiating a request possesses the necessary privileges to execute specific functions related to image comparison management or configuration. This oversight creates a pathway for attackers to manipulate the plugin's behavior in ways that were not intended by its developers, potentially leading to unauthorized modifications of site content or exposure of sensitive data associated with before-and-after image comparisons.
From an operational perspective, this vulnerability enables exploitation through Incorrectly Configured Access Control Security Levels, as noted in the advisory. An attacker can craft specific HTTP requests targeting endpoints managed by the plugin without being logged into the WordPress dashboard or possessing administrator-level credentials. This type of attack falls under MITRE ATT&CK technique T1078, Valid Accounts, particularly when combined with credential stuffing or if valid low-privilege accounts are compromised, but more critically it aligns with T1546.003, Event Triggered Execution: Visual Basic Scripts, or generally unauthorized state changes via API abuse depending on the specific implementation details of the plugin's AJAX handlers or REST endpoints. The ability to bypass these controls means that any visitor to the website could potentially alter settings, delete comparison data, or inject malicious code if the vulnerability extends into input validation areas often coupled with authorization flaws in WordPress plugins.
The impact of this missing authorization is significant for site integrity and security posture. Since WordPress plugins frequently handle user-generated content and media files, an attacker exploiting this flaw could deface web pages by altering displayed images or their associated metadata. Furthermore, if the plugin interacts with other parts of the CMS core or third-party services, the lack of proper access verification might allow for privilege escalation scenarios where a low-privilege contributor account gains administrative capabilities. This undermines the principle of least privilege and exposes the underlying WordPress installation to further exploitation vectors that rely on elevated permissions. The vulnerability persists across all versions from n/a through 1.1.21, indicating a systemic design flaw in how access controls were implemented throughout these releases rather than an isolated incident in a single version update.
Mitigation strategies for this vulnerability require immediate action by site administrators and developers. The primary remediation is to upgrade the Before After Image Comparison plugin to a patched version released after 1.1.21, where the vendor has presumably corrected the access control logic to enforce proper authorization checks on all sensitive operations. Until an update is available or if no patch exists, administrators should consider disabling the plugin entirely to eliminate the attack surface. Additionally, implementing Web Application Firewall (WAF) rules can help mitigate exploitation by blocking suspicious request patterns that target known vulnerable endpoints associated with this plugin. It is also advisable to review user roles and capabilities within WordPress to ensure that only trusted users have access to media management features, reducing the risk of internal misuse or exploitation via compromised low-level accounts. Regular security audits and adherence to secure coding standards such as OWASP Top 10 are essential for preventing similar authorization failures in future plugin developments.