---
id: CVE-2026-88793
title: >-
  The YouTube Embed WordPress plugin from 10.0 to 10.3 does not perform any
  authorisation check on one of its AJAX actions, relying only on a nonce it
  prints on every front-end page, and does not escape the stored data before
  rendering it,…
summary: >-
  The YouTube Embed WordPress plugin from 10.0 to 10.3 does not perform any
  authorisation check on one of its AJAX actions, relying only on a nonce it
  prints on every front-end page, and does not escape the stored data before
  rendering it,…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-79
product: YouTube Embed
affected:
  - youtube_embed >= 10.0 <= 10.3
published: '2026-09-13'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T21:10:17.423'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88793'
references:
  - url: 'https://wpscan.com/vulnerability/7f695b0c-5dbc-4f3e-9b3f-c3558b1729ad/'
    label: contact@wpscan.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-14T12:37:03.897781Z'
ingestedAt: '2026-09-14T15:23:07.431Z'
epss: 0.00505
epssPercentile: 0.40579
---

## Overview

The YouTube Embed WordPress plugin from 10.0 to 10.3 does not perform any authorisation check on one of its AJAX actions, relying only on a nonce it prints on every front-end page, and does not escape the stored data before rendering it, allowing unauthenticated attackers to store arbitrary web scripts which will execute in the session of any user viewing the affected content, including an administrator.

## Remediation

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