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Medium 4.3Published Feb 5, 2026

CVE-2026-1228Timeline Block <= 1.3.3 - Insecure Direct Object Reference to Authenticated (Author+) Private Timeline Exposure via Shortcode Attribute

Updated under an hour ago ()

Does this affect you?

It affects bplugins Timeline Block – Beautiful Timeline Builder for WordPress (Vertical & Horizontal Timelines). Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
4.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE)
CWE-639
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Wordfence
NVD analysis
Deferred
Record last updated
Apr 8, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
bplugins Timeline Block – Beautiful Timeline Builder for WordPress (Vertical & Horizontal Timelines)
bplugins:timeline_block_beautiful_timeline_builder_for_wordpress_vertical_and_horizontal_timelines (from the name)
through 1.3.3
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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