CVE-2026-1228 Information disclosure in Timeline Block – Beautiful Timeline Builder for WordPress (Vertical & Horizontal Timelines)
Authenticated attackers with Author access can expose private timeline content via insecure direct object reference in the shortcode attribute.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-1228?
CVE-2026-1228 is a medium-severity vulnerability in bplugins Timeline Block – Beautiful Timeline Builder for WordPress (Vertical & Horizontal Timelines), published on 6 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-639
Which versions are affected by CVE-2026-1228?
How do I fix CVE-2026-1228?
No fix has been published for CVE-2026-1228 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-1228 being exploited?
There is no known exploitation of CVE-2026-1228 in the wild and no public exploit code.
Sources
Also known as GHSA-cc7g-vfw3-m4mr.