CVE-2026-1228

The Timeline Block – Beautiful Timeline Builder for WordPress (Vertical & Horizontal Timelines) plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.3.3 via the tlgb_shortcode() function due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Author-level access and above, to disclose private timeline content via the id attribute supplied to the 'timeline_block' shortcode.

Score

CVSS 3.1 4.3 Medium

Status

Deferred - security@wordfence.com

Published

2026-02-06

Last modified

2026-04-08

Weaknesses

CWE-639

Affected products

• Timeline Block Beautiful Timeline Builder For Wordpress Vertical Horizontal Timelines (Bplugins)

References

• https://plugins.trac.wordpress.org/changeset/3446078/timeline-block-block
• https://www.wordfence.com/threat-intel/vulnerabilities/id/cecebfd0-c2af-4150-8793-299cdbeaa7b9?source=cve