Vulnerability · Published May 28, 2026 · Assigned by Wordfence
CVE-2026-7526PDF Embedder <= 4.9.3 - Authenticated (Contributor+) Information Exposure via Block Editor Page
Medium 4.3
In plain English
A medium-severity information exposure in PDF Embedder – PDF Viewer & Embed PDF Files for WordPress from smub. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| smub | PDF Embedder – PDF Viewer & Embed PDF Files for WordPress | 0 – through 4.9.3 |
Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0e0f2516-0fa7-415e-868e-6bd259bc6546?source=cve
- https://plugins.trac.wordpress.org/browser/pdf-embedder/trunk/src/Plugin.php#L224
- 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/tags/4.9.3/src/Plugin.php#L204
- https://plugins.trac.wordpress.org/changeset/3531901/pdf-embedder/trunk/src/Plugin.php?old=3429550&old_path=pdf-embedder%2Ftrunk%2Fsrc%2FPlugin.php
- https://research.cleantalk.org/cve-2026-7526/