The Open Source Genesis Framework theme for WordPress suffers from a stored cross-site scripting vulnerability (CWE-79) due to improper neutralization of input during web page generation. Specifically, user-supplied attributes in theme shortcodes are not properly sanitized or escaped, allowing authenticated users with contributor-level privileges or above to inject arbitrary scripts. These scripts execute in the context of other users viewing the injected pages, potentially leading to information disclosure or session hijacking. The vulnerability affects all versions up to 3.6.0. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, privileges required, no user interaction, and partial impact on confidentiality and integrity.

An attacker with contributor-level access or higher can inject persistent malicious scripts into pages via theme shortcodes. These scripts execute in the browsers of users who view the compromised pages, potentially leading to unauthorized actions or data exposure within the context of the affected site. The impact is limited to confidentiality and integrity with no availability impact. There are no reports of active exploitation in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level access to trusted users only and consider disabling or limiting the use of theme shortcodes that accept user input. Monitor official StudioPress channels for updates and apply patches promptly once available.