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CVE-2026-6551

nvd nist
Published: Apr 28, 2026Modified: Jun 17, 2026Deferred

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6.4
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Exploitability: 3.1 / Impact: 2.7
Source: security@wordfence.com (Secondary)

Description

The Timeline Blocks for Gutenberg plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'titleTag' attribute of the timeline-blocks/tb-timeline-blocks block in all versions up to, and including, 1.1.10 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Related CWEs

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (7)

Source: security@wordfence.com
Source: security@wordfence.com
Source: security@wordfence.com
Source: security@wordfence.com
Source: security@wordfence.com
Source: security@wordfence.com
Source: security@wordfence.com

Timeline

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