CVE-2026-23731 identifies a clickjacking vulnerability in the WeGIA web application, a platform used by charitable institutions for management purposes. The root cause is the absence of HTTP headers that prevent framing, specifically the missing X-Frame-Options header and the lack of Content-Security-Policy (CSP) directives such as frame-ancestors. Without these protections, an attacker can embed WeGIA pages inside a malicious webpage using HTML frames or iframes. This allows the attacker to overlay deceptive UI elements or hide legitimate buttons, tricking users into performing unintended actions, such as submitting forms or triggering workflows that could alter data or settings. The vulnerability requires the victim to visit a malicious site and interact with the framed content, but it does not require the attacker to have any privileges or the victim to be authenticated beforehand. The CVSS v3.1 score is 4.3 (medium), reflecting the low impact on confidentiality and availability but a potential integrity risk due to forced user actions. The vulnerability was addressed in WeGIA version 3.6.2 by adding appropriate HTTP headers to restrict framing. No public exploits have been reported, indicating limited active exploitation. The vulnerability is classified under CWE-1021, which concerns improper restriction of rendered UI layers or frames, a common vector for clickjacking attacks.

For European organizations using WeGIA, this vulnerability poses a risk primarily to the integrity of user interactions within the application. Attackers could trick users into executing unintended commands or workflows, potentially leading to unauthorized changes in data or operational processes. While confidentiality and availability remain unaffected, the manipulation of user actions could undermine trust and operational reliability, especially in sensitive charitable institution environments where data accuracy and workflow integrity are critical. The requirement for user interaction limits the attack scope but does not eliminate risk, particularly if users are targeted via phishing or social engineering campaigns. The absence of known exploits reduces immediate threat but does not preclude future attacks. Organizations failing to update may face reputational damage and operational disruptions if exploited. The impact is heightened in environments with high user interaction and sensitive workflows managed through WeGIA.

European organizations should immediately upgrade WeGIA to version 3.6.2 or later to ensure the inclusion of frame-ancestors and X-Frame-Options HTTP headers that prevent framing attacks. In addition to patching, organizations should implement Content Security Policy (CSP) with the frame-ancestors directive configured to allow only trusted domains to embed the application, further reducing clickjacking risks. Security teams should conduct user awareness training to recognize phishing and suspicious links that could lead to clickjacking attempts. Web application firewalls (WAFs) can be configured to detect and block suspicious framing behaviors. Regular security assessments and penetration testing should include checks for UI redress vulnerabilities. Monitoring web traffic for unusual referrer headers or framing attempts can help detect exploitation attempts. Finally, organizations should review and harden sensitive workflows within WeGIA to require additional confirmation steps or multi-factor authentication to mitigate unintended actions.