---
id: CVE-2026-71542
title: >-
  GetSimple CMS is a content management system (CMS), and GetSimple CMS CE is
  the community edition of that CMS
summary: >-
  GetSimple CMS is a content management system (CMS), and GetSimple CMS CE is
  the community edition of that CMS. In versions 3.3.22 and prior,
  GetSimpleCMS-CE is vulnerable to stored Cross-Site Scripting (XSS) in the
  "Theme to Components" …
severity: high
cvss: 8.7
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'
cwe:
  - CWE-79
vendor: GetSimpleCMS-CE
product: GetSimpleCMS-CE
affected:
  - GetSimpleCMS-CE <= 3.3.22
published: '2026-10-01'
updated: '2026-10-01'
sourceUpdated: '2026-10-01T20:23:46.493'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-71542'
references:
  - url: >-
      https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-vqfh-838q-xfqh
    label: security-advisories@github.com
  - url: >-
      https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-vqfh-838q-xfqh
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-01T19:51:10.583264Z'
cvssSource: cna
ingestedAt: '2026-10-01T19:58:57.558Z'
---

## Overview

GetSimple CMS is a content management system (CMS), and GetSimple CMS CE is the community edition of that CMS. In versions 3.3.22 and prior, GetSimpleCMS-CE is vulnerable to stored Cross-Site Scripting (XSS) in the "Theme to Components" functionality (admin/components.php) via the title parameter. The stored title is rendered inside a double-quoted HTML attribute in the administrative interface through an output path that HTML-entity-decodes the value before printing it, without re-encoding for the attribute context. This allows persistent execution of arbitrary JavaScript in the admin panel. At time of publication, there are no publicly available patches.

## Remediation

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