CVE-2026-22463 identifies a stored Cross-site Scripting (XSS) vulnerability in the Form to Chat App developed by Micro.company, affecting versions up to and including 1.2.5. The vulnerability stems from improper neutralization of user-supplied input during the generation of web pages, which allows an attacker to inject malicious JavaScript code that is stored persistently within the application. When other users or administrators access the affected pages, the malicious script executes in their browsers within the security context of the vulnerable application. This can lead to unauthorized actions such as session hijacking, credential theft, or manipulation of displayed content. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L) indicates that the attack can be launched remotely over the network with low attack complexity, requires low privileges, and user interaction is necessary. The scope is changed, meaning the vulnerability can affect resources beyond the initially vulnerable component. The impact affects confidentiality, integrity, and availability at a low level but can be leveraged in chained attacks. No known exploits are reported in the wild yet, but the vulnerability is publicly disclosed and should be considered a credible risk. The absence of patches at the time of disclosure necessitates immediate mitigation efforts. Stored XSS vulnerabilities are particularly dangerous because the malicious payload remains on the server and can affect multiple users over time. The vulnerability is relevant for any organization using the Form to Chat App for customer engagement or internal communication, especially where sensitive data is handled or where users have elevated privileges.

For European organizations, this vulnerability poses risks primarily related to data confidentiality and integrity. Attackers exploiting the stored XSS could hijack user sessions, steal authentication tokens, or manipulate displayed data, potentially leading to unauthorized access or data leakage. The availability impact, while rated low, could manifest through defacement or disruption of chat functionalities, affecting business continuity and customer trust. Organizations in sectors with stringent data protection requirements, such as finance, healthcare, and government, may face regulatory repercussions if exploitation leads to personal data exposure under GDPR. The requirement for low privileges to exploit and the remote attack vector increase the likelihood of targeted attacks, especially in environments where the Form to Chat App is integrated with other internal systems. Additionally, the scope change in the CVSS vector suggests that the vulnerability could impact components beyond the immediate application, potentially escalating the severity in complex deployments. Although no active exploits are known, the public disclosure increases the risk of opportunistic attacks, particularly phishing campaigns leveraging the XSS to deliver malicious payloads. European organizations relying on this app for customer interaction or internal communication should consider the threat significant enough to warrant prompt action.

1. Monitor Micro.company's official channels for patches addressing CVE-2026-22463 and apply them immediately upon release. 2. Until patches are available, implement strict input validation on all user-submitted data to the Form to Chat App, ensuring that potentially malicious characters are sanitized or rejected. 3. Employ robust output encoding techniques when rendering user inputs in web pages to prevent script execution. 4. Deploy Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts and reduce the impact of potential XSS payloads. 5. Conduct regular security audits and penetration testing focusing on input handling and stored content vulnerabilities within the app. 6. Educate users and administrators about the risks of clicking suspicious links or interacting with untrusted content within the chat interface. 7. Isolate the Form to Chat App environment from critical internal systems to limit lateral movement in case of compromise. 8. Implement web application firewalls (WAFs) with rules designed to detect and block common XSS attack patterns targeting this application. 9. Review and tighten user privilege assignments to minimize the number of users with low privileges who can submit content that is rendered by others. 10. Maintain comprehensive logging and monitoring to detect anomalous activities indicative of exploitation attempts.