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Content Blocks (Custom Post Widget)

Content Blocks (Custom Post Widget) is a WordPress component with 1 published CVE record in this archive. The latest tracked vulnerability was published Apr 18, 2026; the highest CVE/CNA score is 6.4.

Plugin slug: content-blocks-custom-post-widget

CVE-2026-0894: Content Blocks (Custom Post Widget): Cross-site scripting

Content Blocks (Custom Post Widget) is affected by cross-site scripting. Exploitation requires at least contributor-level access. Injected script can execute in the affected site's origin when the vulnerable output is viewed. The published affected range is <= 3.3.9.

PublishedApr 18, 2026
Known safe version> 3.3.9
Safe version
Apr 18, 2026 CVE-2026-0894
Content Blocks (Custom Post Widget): Cross-site scripting
Content Blocks (Custom Post Widget) is affected by cross-site scripting. Exploitation requires at least contributor-level access. Injected script can execute in the affected site's origin when the vulnerable output is viewed. The published affected range is <= 3.3.9.
> 3.3.9
CVE6.4
NVDPending