---
id: CVE-2026-88993
title: >-
  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 th…
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 th…
severity: medium
cvss: 6.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-79
product: All Bootstrap Blocks
affected:
  - all_bootstrap_blocks <= 1.3.31
published: '2026-09-18'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T19:08:32.830'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88993'
references:
  - url: 'https://wpscan.com/vulnerability/fc1f2f62-62cd-4a70-b541-2278eb0edefe/'
    label: contact@wpscan.com
tags:
  - nvd
  - cve.org
epss: 0.00235
epssPercentile: 0.14804
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-18T11:01:14.875862Z'
ingestedAt: '2026-09-18T06:36:37.987Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.