CVE-2026-88993
MediumCVSS 6.8Exploitation Probability (EPSS)
Low risk15th percentile - higher than 15% of all known CVEs
Summary
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.
Risk Assessment
An attacker can inject malicious scripts (XSS) that execute in visitors' browsers, leading to session or data theft.
Recommendation
Update the plugin to a version later than 1.3.31. Scan content for injected scripts.
Other vulnerabilities in All Bootstrap Blocks
See all- CVE-2026-62036Medium
The All Bootstrap Blocks WordPress plugin up to version 1.3.31 exposes sensitive system information to unauthorized control spheres. Attackers can exploit this to retrieve embedded sensitive data.
- CVE-2025-54733Medium
The All Bootstrap Blocks plugin up to version 1.3.28 has a Missing Authorization vulnerability, allowing exploitation of incorrectly configured access control security levels. Attackers can exploit this to perform unauthorized actions.
Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS