CVE-2026-7526

The PDF Embedder plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.9.3 via the enqueue_block_assets. This makes it possible for authenticated attackers, with contributor-level access and above, to extract configuration data. License key exposure occurs when the premium add-on is also installed and has saved a key; on Lite-only installations, the exposed data is limited to non-sensitive viewer configuration values such as width, height, toolbar settings, usage tracking, and plan.

Score

CVSS 3.1 4.3 Medium

Status

Deferred - security@wordfence.com

Published

2026-05-28

Last modified

2026-08-22

Weaknesses

CWE-200

Affected products

• Pdf Embedder Pdf Viewer Embed Pdf Files For Wordpress (Smub)

References

• https://plugins.trac.wordpress.org/browser/pdf-embedder/tags/4.9.3/src/Plugin.php#L204
• https://plugins.trac.wordpress.org/browser/pdf-embedder/tags/4.9.3/src/Plugin.php#L224
• https://plugins.trac.wordpress.org/browser/pdf-embedder/trunk/src/Plugin.php#L204
• https://plugins.trac.wordpress.org/browser/pdf-embedder/trunk/src/Plugin.php#L224
• https://plugins.trac.wordpress.org/changeset/3531901/pdf-embedder/trunk/src/Plugin.php?old=3429550&old_path=pdf-embedde…
• https://research.cleantalk.org/cve-2026-7526/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/0e0f2516-0fa7-415e-868e-6bd259bc6546?source=cve