Is CVE-2026-3896 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-3896 being exploited in the wild.

How severe is CVE-2026-3896?

Medium severity, with a CVSS score of 6.4, published 27 May 2026.

Which products and versions are affected?

Livemesh SiteOrigin Widgets Up to, and including, 3.9.2.

Is there a fix for CVE-2026-3896?

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-2026-3896 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-3896?

Check whether you run Livemesh SiteOrigin Widgets 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.

CVE-2026-3896: Livemesh SiteOrigin Widgets Stored XSS in lsow_admin_ajax

CVE-2026-3896 · Severity: medium · CVSS 6.4 · Published 2026-05-27

The Livemesh SiteOrigin Widgets plugin for WordPress, which provides additional design elements for websites, contains a security flaw that allows low-level users to change plugin settings. By exploiting this, an attacker can inject malicious scripts into the website. These scripts can then target site administrators or visitors, potentially leading to unauthorized actions or data theft.

Vendors: Livemesh.

Quick answers

Is CVE-2026-3896 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-3896 being exploited in the wild.
How severe is CVE-2026-3896?: Medium severity, with a CVSS score of 6.4, published 27 May 2026.
Which products and versions are affected?: Livemesh SiteOrigin Widgets Up to, and including, 3.9.2.
Is there a fix for CVE-2026-3896?: 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-2026-3896 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-3896?: Check whether you run Livemesh SiteOrigin Widgets 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

The Livemesh SiteOrigin Widgets plugin for WordPress is vulnerable to Stored Cross-Site Scripting (XSS) via the 'lsow_admin_ajax' AJAX action in versions up to 3.9.2. The vulnerability stems from a missing capability check (CWE-862) and inadequate input sanitization within the AJAX handler. While the handler validates a nonce, it fails to verify if the requesting user has administrative privileges. This allows authenticated attackers with Subscriber-level access or higher to modify plugin settings and inject malicious JavaScript. The injected scripts execute when an administrator views the settings page or when users visit the site's frontend.

Affected products

Livemesh Livemesh SiteOrigin Widgets Up to, and including, 3.9.2

Timeline

2026-05-27: disclosed
2026-05-27: advisory

References

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