Auth bypass in Colbeinformatik Katalogportal-pdf-sync Widget

CVE-2026-3649

The Katalogportal PDF Sync plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 1.0.0. The katalogportal_popup_shortcode() function is registered as an AJAX handler via wp_ajax_katalogportal_short…

Vulnerability class: Broken Access Control

EPSS: 0.000 (14.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-3649?
CVE-2026-3649 is a medium-severity vulnerability in Colbeinformatik Katalogportal-pdf-sync Widget, classified under Missing Authorization. CVSS score: 5.3/10. Published 2026-04-15.
How severe is CVE-2026-3649?
Medium severity. CVSS v3 base score is 5.3 out of 10.