Description
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.
References (2)
Core 2
Core References
Scores
CVSS v3
4.3
EPSS
0.0018
EPSS Percentile
7.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-639
Status
published
Products (1)
bplugins/Timeline Block – Beautiful Timeline Builder for WordPress (Vertical & Horizontal Timelines)
< 1.3.3
Published
Feb 06, 2026
Tracked Since
Feb 18, 2026