Description
The Embed Bokun plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘align’ parameter in all versions up to, and including, 0.23 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Published: 2025-08-16
Score: 6.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Stored Cross‑Site Scripting that allows execution of arbitrary scripts in pages accessed by users
Action: Patch Plugin
AI Analysis

Impact

The Embed Bokun WordPress plugin allows stored XSS through the align parameter, which is not properly sanitized or escaped. This flaw permits authenticated users with Contributor-level permissions to inject JavaScript that executes on every load of affected pages. The result is potential theft of session data, defacement, or other client‑side attacks, with the scope limited to users who view the compromised content.

Affected Systems

The vulnerability affects the luuptek Embed Bokun plugin for WordPress, all releases up to and including version 0.23. Any WordPress site that has this plugin installed and has users with Contributor or higher privileges is at risk.

Risk and Exploitability

The CVSS score of 6.4 indicates moderate severity, while the EPSS score of less than 1% suggests a low probability of exploitation at this time. The issue is not listed in CISA's KEV catalog, but the attack vector requires authenticated access with at least Contributor rights. Successful exploitation would result in arbitrary script execution in the browser context of page viewers.

Generated by OpenCVE AI on April 22, 2026 at 14:28 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Update the Embed Bokun plugin to the latest version (greater than 0.23) to apply the vendor‑supplied fix for the XSS issue.
  • Revoke or restrict Contributor‑level access on the affected WordPress site, limiting the number of users who can create or edit content that passes through the align parameter.
  • Configure the site to escape or sanitize the align parameter on input and ensure that any output containing this value is properly encoded in the HTML, preventing script execution.

Generated by OpenCVE AI on April 22, 2026 at 14:28 UTC.

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2025-25071 The Embed Bokun plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘align’ parameter in all versions up to, and including, 0.23 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
History

Wed, 08 Apr 2026 17:00:00 +0000

Type Values Removed Values Added
References

Mon, 18 Aug 2025 21:00:00 +0000

Type Values Removed Values Added
First Time appeared Luuptek
Luuptek embed Bokun
Wordpress
Wordpress wordpress
Vendors & Products Luuptek
Luuptek embed Bokun
Wordpress
Wordpress wordpress

Mon, 18 Aug 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Sat, 16 Aug 2025 03:45:00 +0000

Type Values Removed Values Added
Description The Embed Bokun plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘align’ parameter in all versions up to, and including, 0.23 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Title Embed Bokun <= 0.23 - Authenticated (Contributor+) Stored Cross-Site Scripting via align Parameter
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

Subscriptions

Luuptek Embed Bokun
Wordpress Wordpress
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-04-08T16:43:17.432Z

Reserved: 2025-06-17T22:15:46.331Z

Link: CVE-2025-6221

cve-icon Vulnrichment

Updated: 2025-08-18T13:47:47.851Z

cve-icon NVD

Status : Deferred

Published: 2025-08-16T04:16:01.437

Modified: 2026-04-15T00:35:42.020

Link: CVE-2025-6221

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-22T14:30:18Z

Weaknesses