Information disclosure in Smub Pdf Embedder
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (32.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 32.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/0e0f2516-0fa7-415e-868e-6bd25…
- plugins.trac.wordpress.org/browser/pdf-embedder/trunk/src/Plugin.php
- plugins.trac.wordpress.org/browser/pdf-embedder/tags/4.9.3/src/Plugin.php
- plugins.trac.wordpress.org/browser/pdf-embedder/trunk/src/Plugin.php
- plugins.trac.wordpress.org/browser/pdf-embedder/tags/4.9.3/src/Plugin.php
- plugins.trac.wordpress.org/changeset/3531901/pdf-embedder/trunk/src/Plugin.php
- research.cleantalk.org/cve-2026-7526/
Frequently asked questions
- What is CVE-2026-7526?
- CVE-2026-7526 is a medium-severity vulnerability in Smub Pdf Embedder, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-05-28.
- How severe is CVE-2026-7526?
- Medium severity. CVSS v3 base score is 4.3 out of 10.