# CVE-2026-94118: Premium Blocks , Gutenberg Blocks for WordPress contributor XSS

Source: https://junglewise.ai/threats/cve-2026-94118-contributor-cross-site-scripting-xss-in-premium-blocks-gutenberg  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-23. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-94118 · Severity: medium · CVSS 6.5 · Published 2026-09-23

Premium Blocks is a WordPress plugin that provides Gutenberg-compatible content blocks for website editing. A cross-site scripting (XSS) vulnerability allows contributors to inject malicious scripts that could steal visitor data or hijack user accounts. The flaw requires user interaction and is present in versions up to 2.3.17, with a patch available in version 2.3.18.

Technologies: [LeapWorx Premium Blocks – Gutenberg Blocks for WordPress](https://junglewise.ai/threats/technologies/premium-blocks-gutenberg-blocks-for-wordpress). Vendors: [LeapWorx](https://junglewise.ai/threats/vendors/leapworx).

## Quick answers

**Is CVE-2026-94118 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-94118 being exploited in the wild.

**How severe is CVE-2026-94118?** Medium severity, with a CVSS score of 6.5, published 23 September 2026.

**Which products and versions are affected?** LeapWorx Premium Blocks – Gutenberg Blocks for WordPress up to 2.3.17.

**Is there a fix for CVE-2026-94118?** A patch was published on 2026-09-23: Patched in version 2.3.18 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-94118 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-94118?** Check whether you run LeapWorx Premium Blocks – Gutenberg Blocks for WordPress 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 plugin contains a reflected or stored XSS vulnerability exploitable by users with contributor-level privileges. Successful exploitation requires a privileged user to perform an action such as clicking a malicious link or visiting a crafted page. An attacker can inject arbitrary JavaScript into the site to steal session tokens, credentials, or perform actions on behalf of logged-in users.

## Affected products

- LeapWorx Premium Blocks – Gutenberg Blocks for WordPress up to 2.3.17

## Timeline

- 2026-08-28: disclosed: Reported by benzdeus
- 2026-09-23: advisory: Published by Patchstack
- 2026-09-23: patched: Patched in version 2.3.18

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/premium-blocks-for-gutenberg/vulnerability/wordpress-premium-blocks-gutenberg-blocks-for-wordpress-plugin-2-3-17-cross-site-scripting-xss-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/premium-blocks-for-gutenberg/vulnerability/wordpress-premium-blocks-gutenberg-blocks-for-wordpress-plugin-2-3-17-cross-site-scripting-xss-vulnerability?_s_id=cve)

## Related threats

- [LeapWorx Premium Blocks Gutenberg broken access control](https://junglewise.ai/threats/cve-2026-123474-missing-authorization-vulnerability-in-leapworx-premium-blocks)
- [LeapWorx Premium Blocks broken access control in WordPress plugin](https://junglewise.ai/threats/cve-2026-123466-missing-authorization-vulnerability-in-leapworx-premium-blocks)