CVE-2026-66573 is an XSS vulnerability (CWE-79) in JetTabs versions up to and including 2.3.3.1. It arises from improper neutralization of input during web page generation, which could allow an attacker with low privileges to execute arbitrary scripts in the context of the affected application. The CVSS 3.1 vector indicates network attack vector, low attack complexity, low privileges required, user interaction required, scope changed, and impacts on confidentiality, integrity, and availability at a low level.

Successful exploitation could allow an attacker to execute arbitrary scripts in the context of the affected application, potentially leading to information disclosure, modification of data, or disruption of service. The attack requires user interaction and low privileges, limiting the ease of exploitation but still posing a risk to users interacting with the vulnerable component.

No patch or remediation information is provided in the available data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should exercise caution with untrusted input and consider implementing additional input validation or output encoding as temporary mitigations.