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.
Published: 2026-02-06
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Insecure Direct Object Reference exposing private timeline data
Action: Apply Patch
AI Analysis

Impact

The Timeline Block – Beautiful Timeline Builder for WordPress plugin is vulnerable to Insecure Direct Object Reference. The missing validation on the id attribute of the 'timeline_block' shortcode allows an attacker who is logged in with Author level or higher to request private timeline content that was intended for restricted recipients. This results in unauthorized disclosure of private timeline data, a confidentiality breach.

Affected Systems

WordPress sites using the Timeline Block – Beautiful Timeline Builder for WordPress plugin from bplugins. Versions up to and including 1.3.3 are affected. No specific sub‑versions are listed beyond the major release number.

Risk and Exploitability

The vulnerability has a CVSS score of 4.3 and an EPSS probability of less than 1%, indicating a moderate severity but a low likelihood of exploitation. It is not listed in the CISA KEV database. Attackers need only be authenticated with Author level or higher and can leverage the shortcode by supplying an arbitrary id value to obtain private timeline details. The weakness primarily stems from a lack of proper authorization checks (CWE‑639).

Generated by OpenCVE AI on April 15, 2026 at 17:28 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade the Timeline Block plugin to a version newer than 1.3.3 if available; this is the most definitive fix.
  • Restrict the 'timeline_block' shortcode so that only Administrators can use it, preventing Author-level users from accessing private timeline content.
  • If an upgrade or restriction is not feasible, deactivate the plugin or remove shortcodes that expose private timelines from public or draft pages until a trusted patch is applied.

Generated by OpenCVE AI on April 15, 2026 at 17:28 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Fri, 06 Feb 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 06 Feb 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Bplugins
Bplugins timeline Block – Beautiful Timeline Builder For Wordpress (vertical & Horizontal Timelines)
Wordpress
Wordpress wordpress
Vendors & Products Bplugins
Bplugins timeline Block – Beautiful Timeline Builder For Wordpress (vertical & Horizontal Timelines)
Wordpress
Wordpress wordpress

Fri, 06 Feb 2026 03:15:00 +0000

Type Values Removed Values Added
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.
Title Timeline Block <= 1.3.3 - Insecure Direct Object Reference to Authenticated (Author+) Private Timeline Exposure via Shortcode Attribute
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'}

Subscriptions

Bplugins Timeline Block – Beautiful Timeline Builder For Wordpress (vertical & Horizontal Timelines)
Wordpress Wordpress
cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-04-08T17:24:31.746Z

Reserved: 2026-01-20T13:01:02.988Z

Link: CVE-2026-1228

cve-icon Vulnrichment

Updated: 2026-02-06T19:28:01.302Z

cve-icon NVD

Status : Deferred

Published: 2026-02-06T03:15:48.077

Modified: 2026-04-15T00:35:42.020

Link: CVE-2026-1228

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-15T17:45:10Z

Weaknesses