CVE-2026-88993: Unknown All Bootstrap Blocks

Medium severity, CVSS 6.8. EPSS: 0.4% chance of exploitation in the next 30 days.

The All Bootstrap Blocks WordPress plugin through 1.3.31 does not properly escape a block attribute before outputting it in HTML tag-name position, allowing users with Contributor-level access and above to inject arbitrary web scripts that execute when the affected content is viewed.

Affected products

• Unknown All Bootstrap Blocks: up to and including 1.3.31

Published 2026-09-18. Last modified 2026-09-18.