The WPBakery Page Builder plugin for WordPress suffers from a stored cross-site scripting vulnerability (CWE-79) identified as CVE-2024-5265. This flaw exists due to improper neutralization of input in the link attribute of the vc_single_image shortcode, allowing authenticated users with contributor or higher privileges to inject malicious scripts. These scripts execute in the context of any user viewing the compromised page, potentially leading to session hijacking or other script-based attacks. The vulnerability affects all versions up to 7.6. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, and privileges required at the contributor level. No patch or official fix has been documented yet.

An attacker with contributor-level or higher access can inject persistent malicious scripts into pages via the vulnerable shortcode attribute. These scripts execute in the browsers of users who view the infected pages, potentially compromising user sessions or performing unauthorized actions within the context of the affected site. The vulnerability does not impact availability but affects confidentiality and integrity to a limited extent. 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 released, restrict contributor-level access to trusted users only and consider disabling or limiting use of the vc_single_image shortcode. Monitor vendor channels for updates and apply patches promptly once available.