CVE-2026-25010 in Share This Image Plugin
Summary
by MITRE • 02/03/2026
Missing Authorization vulnerability in ILLID Share This Image share-this-image allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Share This Image: from n/a through <= 2.09.
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Analysis
by VulDB Data Team • 02/04/2026
The vulnerability identified as CVE-2026-25010 represents a critical missing authorization flaw within the ILLID Share This Image plugin, specifically impacting versions ranging from the initial release through version 2.09. This security weakness resides in the plugin's access control configuration, where improperly set security levels allow unauthorized users to exploit functionality that should be restricted to authorized personnel only. The vulnerability manifests as an incorrect configuration of access control security levels, creating a pathway for malicious actors to bypass intended authorization mechanisms. The affected plugin operates within web applications where image sharing functionality is implemented, making it a potential vector for unauthorized data access and manipulation.
The technical implementation of this vulnerability stems from inadequate validation of user permissions during image sharing operations. When users attempt to access or modify shared images through the plugin interface, the system fails to properly verify whether the requesting user possesses the necessary authorization levels. This misconfiguration creates a scenario where any authenticated user can potentially access restricted image sharing features, regardless of their role or privileges within the application's security framework. The flaw operates at the application level, affecting the plugin's ability to enforce proper access control policies. According to CWE standards, this vulnerability aligns with CWE-285, which addresses improper authorization in software systems, and represents a classic case of insufficient access control mechanisms.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it can enable attackers to manipulate shared image data, potentially leading to data exposure, content tampering, or even the compromise of user privacy. An attacker exploiting this vulnerability could gain access to images that should be restricted to specific user groups or administrative functions. The consequences may include unauthorized modification of shared content, disclosure of sensitive visual information, or the ability to create false sharing records. This vulnerability particularly affects web applications that rely on the Share This Image plugin for collaborative image sharing features, where the security of shared content is paramount. The attack surface is broadened by the plugin's integration with various content management systems and web platforms that support image sharing functionality.
Mitigation strategies for CVE-2026-25010 require immediate attention through proper access control configuration and security hardening measures. System administrators should implement robust authorization checks that validate user permissions before granting access to image sharing features. The plugin should be updated to version 2.10 or later where the access control mechanisms have been properly implemented and tested. Security configurations must be reviewed to ensure that access control policies are correctly enforced at all levels of the application stack. Organizations should conduct thorough security audits of their web applications to identify similar authorization flaws in other plugins or components. The remediation process should include implementing proper input validation, enforcing role-based access controls, and establishing comprehensive logging mechanisms to detect unauthorized access attempts. Additionally, security teams should consider implementing network-level controls and monitoring solutions to detect potential exploitation attempts. This vulnerability demonstrates the critical importance of proper access control implementation and serves as a reminder of the necessity for regular security assessments of third-party plugins and components within web applications. The ATT&CK framework categorizes this vulnerability under privilege escalation and unauthorized access tactics, emphasizing the need for comprehensive access control measures throughout the application architecture.