This vulnerability (CVE-2026-28108) affects LambertGroup - AllInOne - Banner with Thumbnails (versions up to 3.8) and is caused by improper neutralization of input during web page generation, resulting in reflected cross-site scripting (XSS). The vulnerability allows an attacker to inject malicious scripts that execute when a user interacts with the affected web page, potentially leading to information disclosure, modification, or disruption of service. The CVSS v3.1 base score is 7.1, indicating high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability. No patch or vendor advisory is currently available, and the product is not a cloud service.

Successful exploitation of this reflected XSS vulnerability can lead to partial compromise of confidentiality, integrity, and availability of the affected system or user data. Attackers could execute arbitrary scripts in the context of the victim's browser, potentially stealing sensitive information, manipulating content, or causing denial of service. However, no known exploits have been reported in the wild at this time.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider applying input validation or output encoding workarounds if feasible. Monitor vendor channels for updates regarding patches or official mitigations.