---
title: "CVE-2026-56662: GetSimple CMS CE - Cross-Site Request Forgery & Remote Code Execution"
description: "GetSimple CMS CE < 1.5 contains a cross-site request forgery caused by missing anti-CSRF token and request-origin verification in the UpdateCE update form, letting remote attackers execute arbitrary code via administrator session, exploit requires administrator authentication."
url: https://panop.io/threat-heartbeat/CVE-2026-56662/
---

# CVE-2026-56662 GetSimple CMS CE - Cross-Site Request Forgery & Remote Code Execution

GetSimple CMS CE < 1.5 contains a cross-site request forgery caused by missing anti-CSRF token and request-origin verification in the UpdateCE update form, letting remote attackers execute arbitrary code via administrator session, exploit requires administrator authentication.

CVSS base score 9.6 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.22% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-56662)

## Details

Type

Cross-Site Request Forgery

Impact

Remote Code Execution, Cross Site Request Forgery, Stored XSS

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Published

1 October 2026

Updated

15 October 2026

Weakness

[CWE-352](https://cwe.mitre.org/data/definitions/352.html)

## Vendor fix

Upgrade to version 1.5 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-56662](https://nvd.nist.gov/vuln/detail/CVE-2026-56662)
- [https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-2rxv-4g4m-573w](https://github.com/GetSimpleCMS-CE/GetSimpleCMS-CE/security/advisories/GHSA-2rxv-4g4m-573w)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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