The Beaver Builder Page Builder plugin for WordPress suffers from a stored cross-site scripting vulnerability (CWE-79) due to improper neutralization of input in the heading tag. Authenticated users with contributor-level access or higher can inject arbitrary web scripts that persist in pages and execute upon page access by other users. This vulnerability affects all versions up to 2.7.4.4. The CVSS 3.1 base score is 6.4, reflecting network attack vector, low attack complexity, required privileges, no user interaction, and impacts on confidentiality and integrity with no availability impact. No official patch or remediation guidance is currently provided by the vendor, and no exploits are known in the wild.

An attacker with contributor or higher privileges can inject persistent malicious scripts into pages via the heading tag. These scripts execute in the context of users who view the affected pages, potentially leading to unauthorized actions or data disclosure limited to the confidentiality and integrity impact scope. There is no reported impact on availability. The vulnerability requires authenticated access, which limits exploitation to users with some level of trust in the system.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict contributor-level access to trusted users only and consider additional input validation or output escaping controls if possible. Monitor for updates from the Beaver Builder plugin vendor regarding patches or official mitigations.