---
id: CVE-2026-88826
title: >-
  The SmugMug Embed WordPress plugin through 3.13 does not have authorisation or
  CSRF checks on an AJAX action that stores gallery data, and does not sanitise
  or escape that data before outputting it, allowing unauthenticated users to
  stor…
summary: >-
  The SmugMug Embed WordPress plugin through 3.13 does not have authorisation or
  CSRF checks on an AJAX action that stores gallery data, and does not sanitise
  or escape that data before outputting it, allowing unauthenticated users to
  stor…
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
published: '2026-10-11'
updated: '2026-10-11'
sourceUpdated: '2026-10-11T12:17:25.700'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88826'
references:
  - url: 'https://wpscan.com/vulnerability/6e8925b5-85a1-48e3-b744-df1c6fa24ed4/'
    label: contact@wpscan.com
tags:
  - nvd
ingestedAt: '2026-10-11T08:44:24.723Z'
epss: 0.00118
epssPercentile: 0.01607
---

## Overview

The SmugMug Embed WordPress plugin through 3.13 does not have authorisation or CSRF checks on an AJAX action that stores gallery data, and does not sanitise or escape that data before outputting it, allowing unauthenticated users to store arbitrary web scripts that execute when an administrator views the SmugMug Embed WordPress plugin through 3.13's settings screen.

## Remediation

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