What is CVE-2026-1228?

CVE-2026-1228 is a medium-severity vulnerability in Bplugins Timeline Block – Beautiful Builder For Wordpress (Vertical & Horizontal Timelines), classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-02-06.

How severe is CVE-2026-1228?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Bplugins Timeline Block – Beautiful Builder For Wordpress (Vertical & Horizontal Timelines)

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.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.002 (7.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Bplugins Timeline Block – Beautiful Builder For Wordpress (Vertical & Horizontal Timelines) — versions 0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

Frequently asked questions

What is CVE-2026-1228?: CVE-2026-1228 is a medium-severity vulnerability in Bplugins Timeline Block – Beautiful Builder For Wordpress (Vertical & Horizontal Timelines), classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-02-06.
How severe is CVE-2026-1228?: Medium severity. CVSS v3 base score is 4.3 out of 10.