This vulnerability, identified as CVE-2026-56041, affects dFactory Responsive Lightbox versions <= 2.7.6. It is a CWE-79 type cross-site scripting (XSS) vulnerability caused by improper neutralization of input during web page generation. The flaw can be exploited without authentication, potentially allowing attackers to execute arbitrary scripts in the context of the affected web application. The CVSS v3.1 base score is 7.1, reflecting network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability with scope changed. No patch or official remediation level has been published as of the data provided.

Successful exploitation of this vulnerability can lead to execution of arbitrary scripts in users' browsers, which may result in theft of sensitive information, session hijacking, or other malicious actions affecting confidentiality, integrity, and availability of the affected system. Because the vulnerability is exploitable without authentication, it poses a significant risk to all users interacting with the vulnerable versions of the Responsive Lightbox plugin.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, consider applying temporary mitigations such as disabling the vulnerable plugin or restricting access to affected functionality. Monitor vendor channels for updates and apply patches promptly once available.