๐Ÿ” CVE Alert

CVE-2026-4073

MEDIUM 6.4

pdfl.io <= 1.0.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'text' Shortcode Attribute

CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th

The pdfl.io plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'pdflio' shortcode in all versions up to, and including, 1.0.5. This is due to insufficient input sanitization and output escaping on the 'text' shortcode attribute. The output_shortcode() function directly concatenates the user-supplied $text variable into HTML output without applying esc_html() or any other escaping function. 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.

CWE CWE-79
Vendor dougblackjr
Product pdfl.io
Published Apr 8, 2026
Last Updated Apr 8, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

dougblackjr / pdfl.io
0 โ‰ค 1.0.5

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/2bf70203-61c0-406a-9110-b60761b4a513?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/pdfl-io/trunk/pdflio.php#L117 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/pdfl-io/tags/1.0.5/pdflio.php#L117 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/pdfl-io/trunk/pdflio.php#L81 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/pdfl-io/tags/1.0.5/pdflio.php#L81 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3492458%40pdfl-io&new=3492458%40pdfl-io

Credits

zakaria