CVE-2026-57754: Livemesh Addons for WPBakery Page Builder XSS in Contributor role

CVE-2026-57754 · Severity: medium · CVSS 6.5 · Published 2026-07-02

Livemesh Addons for WPBakery Page Builder is a WordPress plugin used to add extra design elements and functionality to websites. A security flaw in versions 3.9.4 and earlier allows users with 'Contributor' level access to inject malicious scripts into the site. If a site administrator views the affected content, these scripts could allow an attacker to redirect visitors, display unauthorized advertisements, or potentially compromise administrative accounts.

Vendors: Livemesh.

Quick answers

Is CVE-2026-57754 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-57754 being exploited in the wild.
How severe is CVE-2026-57754?
Medium severity, with a CVSS score of 6.5, published 2 July 2026.
Which products and versions are affected?
Livemesh Addons for WPBakery Page Builder <= 3.9.4.
Is there a fix for CVE-2026-57754?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-57754 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-57754?
Check whether you run Livemesh Addons for WPBakery Page Builder at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stored Cross-Site Scripting (XSS) vulnerability exists in the Livemesh Addons for WPBakery Page Builder plugin for WordPress (versions <= 3.9.4). The issue stems from improper neutralization of user-supplied input during web page generation (CWE-79). An attacker with Contributor-level privileges can inject malicious JavaScript into page elements. The exploit requires a victim (typically an administrator) to interact with the affected page or link. Successful exploitation allows for the execution of arbitrary scripts in the context of the victim's browser, potentially leading to session hijacking or unauthorized site modifications. As of the advisory date, no official patch has been released.

Affected products

  • Livemesh Livemesh Addons for WPBakery Page Builder <= 3.9.4

Timeline

  • 2026-02-26: disclosed: Reported by timomangcut
  • 2026-07-02: advisory: Published by Patchstack and NVD

References

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