The WP Travel Gutenberg Blocks plugin suffers from a stored XSS vulnerability (CWE-79) due to improper input sanitization during web page generation. This flaw allows an attacker with low privileges to inject malicious scripts that can be executed in the context of other users, potentially leading to partial confidentiality, integrity, and availability impacts. The vulnerability affects all versions through 3.5.1. The CVSS 3.1 vector indicates network attack vector, low attack complexity, requiring privileges and user interaction, with scope changed and low impact on confidentiality, integrity, and availability.

Successful exploitation could allow an attacker with low privileges to inject and store malicious scripts that execute when other users view the affected content. This can lead to partial compromise of confidentiality, integrity, and availability of the affected system or user data. However, the impact is limited by the requirement for user interaction and the attacker needing some privileges on the system.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should consider restricting privileges to trusted users and be cautious with content input in WP Travel Gutenberg Blocks. Monitor vendor channels for updates and apply patches promptly once available.