The Mesa Mesa Reservation Widget by gslauraspeck contains a stored cross-site scripting vulnerability due to improper input neutralization during web page generation. This allows attackers with certain privileges to inject malicious scripts that persist and execute in the context of other users viewing the affected pages. The vulnerability affects versions up to and including 1.0.0. The CVSS 3.1 vector indicates network attack vector, low attack complexity, high privileges required, user interaction needed, and impacts on confidentiality, integrity, and availability classified as low to low. No patch or vendor advisory is currently available to confirm remediation status.

Successful exploitation could allow an attacker with high privileges and requiring user interaction to execute arbitrary scripts in the context of other users, potentially leading to limited confidentiality, integrity, and availability impacts. Since this is a stored XSS, malicious payloads could persist and affect multiple users. However, the medium CVSS score and requirement for high privileges and user interaction reduce the overall risk severity. No known active exploitation has been reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should limit privileges to trusted users only and apply standard XSS mitigations such as input validation and output encoding where possible. Monitor vendor channels for updates regarding patches or official mitigations.