How to fix CVE-2026-27161?

Within 24 hours: identify all GetSimple CMS instances in your environment and document their exposure level (internet-facing vs. internal). Within 7 days: implement compensating controls (WAF rules, network access restrictions, directory hardening) and disable GetSimple CMS if not business-critical. Within 30 days: evaluate migration to alternative CMS platforms or establish a patching timeline with the vendor, and conduct a forensic review of access logs for signs of exploitation.

Is Getsimple Cms affected by CVE-2026-27161?

GetSimple CMS installations are vulnerable to unauthorized access of sensitive directories containing backup files and database information due to reliance on .htaccess protection mechanisms that can be bypassed.

CVE-2026-27161

HIGH

2026-02-21 [email protected]

7.5

CVSS 3.1

CVSS Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:04 vuln.today

PoC Detected

Feb 24, 2026 - 13:10 vuln.today

Public exploit code

CVE Published

Feb 21, 2026 - 00:16 nvd

HIGH 7.5

Description

GetSimple CMS is a content management system. All versions of GetSimple CMS rely on .htaccess files to restrict access to sensitive directories such as /data/ and /backups/. If Apache AllowOverride is disabled (common in hardened or shared hosting environments), these protections are silently ignored, allowing unauthenticated attackers to list and download sensitive files including authorization.xml, which contains cryptographic salts and API keys. This issue does not have a fix at the time of publication.

Analysis

Unauthenticated attackers can access sensitive files in GetSimple CMS when Apache's AllowOverride directive is disabled, bypassing .htaccess protections that restrict directory access. This configuration is common in hardened and shared hosting environments, exposing authorization credentials, API keys, and cryptographic salts in files like authorization.xml. …

Remediation

Within 24 hours: identify all GetSimple CMS instances in your environment and document their exposure level (internet-facing vs. internal). …

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.1

CVSS: +38

POC: +20

CVE-2026-27161 vulnerability details – vuln.today

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CVE-2026-27161

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CVE-2026-27161

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External POC / Exploit Code