---
id: CVE-2026-109936
title: >-
  Otter Blocks < 3.2.8 - Unauthenticated Stored XSS via Dynamic Content Render
  Filter
summary: >-
  The Otter Blocks  WordPress plugin before 3.2.8 does not correctly bound a
  pattern it uses to rewrite its dynamic-content tokens while rendering blocks,
  so the pattern can consume the quote that closes an HTML attribute and pull
  adjacent…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'
cvssSource: adp
cwe:
  - CWE-79
product: Otter Blocks
affected:
  - otter_blocks < 3.2.8
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-23T10:45:46.854468Z'
published: '2026-10-23'
updated: '2026-10-23'
sourceUpdated: '2026-10-23T10:45:50.035Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-109936'
references:
  - url: 'https://wpscan.com/vulnerability/c9f264ad-0857-4d1f-9f20-694469d7bee0/'
tags:
  - cve.org
ingestedAt: '2026-10-23T06:17:25.174Z'
---

## Overview

The Otter Blocks  WordPress plugin before 3.2.8 does not correctly bound a pattern it uses to rewrite its dynamic-content tokens while rendering blocks, so the pattern can consume the quote that closes an HTML attribute and pull adjacent unescaped data into the markup as new attributes. This allows unauthenticated users to achieve stored Cross-Site Scripting that executes in the browser of any visitor who views an affected page, including a logged-in administrator.

## Affected

- `otter_blocks < 3.2.8`

## Remediation

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