CVE-2026-4073

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.

The following products are affected by CVE-2026-4073 vulnerability.

No data.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-4073.

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