Description
The EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'slidesShow' Block Attribute in all versions up to, and including, 4.6.6 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. The slidesShow block attribute is interpolated into an unquoted data-carousel-options HTML attribute, allowing a payload containing spaces to break out of the attribute and inject additional DOM attributes such as onfocus event handlers onto the wrapper element.
Published: 2026-10-03
Score: 6.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Stored Cross‑Site Scripting
Action: Apply Patch
AI Analysis

Impact

The EmbedPress plugin contains a stored cross‑site scripting flaw that originates from the slidesShow block attribute being placed inside an unquoted data‑carousel‑options HTML attribute without proper input sanitization or output escaping. This allows an attacker who has at least contributor‑level access to embed arbitrary JavaScript into a page, which will execute in the browsers of any visitor that views the affected page.

Affected Systems

WordPress sites that install the EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, or Upload & Embed PDF documents plugin, for any version up to and including 4.6.6.

Risk and Exploitability

The CVSS base score of 6.4 indicates moderate severity. No EPSS score is available, and the vulnerability is not listed in the CISA KEV catalog. The attack vector requires an authenticated user with contributor or higher privileges to insert or edit content; once stored, the payload is served to all visitors, potentially allowing malicious scripts to run in their browsers.

Generated by OpenCVE AI on October 3, 2026 at 04:50 UTC.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Update the EmbedPress plugin to a version that eliminates the unsafe slidesShow attribute handling, such as the latest released version beyond 4.6.6.
  • If an immediate update is not possible, edit or delete any posts that contain the slidesShow block attribute, or replace the attribute with safely encoded content through the WordPress editor.
  • Implement content security policies that disallow inline script execution and add XSS‑filter headers to reduce the impact of any remaining stored scripts.

Generated by OpenCVE AI on October 3, 2026 at 04:50 UTC.

Tracking

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Advisories

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History

Sat, 03 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Sat, 03 Oct 2026 03:45:00 +0000

Type Values Removed Values Added
Description The EmbedPress – PDF Embedder, 3D PDF FlipBook, Google Reviews, YouTube Videos, Upload & Embed PDF documents plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'slidesShow' Block Attribute in all versions up to, and including, 4.6.6 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. The slidesShow block attribute is interpolated into an unquoted data-carousel-options HTML attribute, allowing a payload containing spaces to break out of the attribute and inject additional DOM attributes such as onfocus event handlers onto the wrapper element.
Title EmbedPress <= 4.6.6 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'slidesShow' Block Attribute
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

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-10-03T15:42:45.992Z

Reserved: 2026-09-16T17:28:45.189Z

Link: CVE-2026-92727

cve-icon Vulnrichment

Updated: 2026-10-03T15:39:34.855Z

cve-icon NVD

Status : Received

Published: 2026-10-03T04:18:03.343

Modified: 2026-10-03T16:16:43.313

Link: CVE-2026-92727

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-03T05:00:14Z

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')