CVE-2026-27161Public exploitNetwork attack vector

Unauthenticated file disclosure via ignored .htaccess controls

Published Feb 20, 2026 · Updated Feb 20, 2026

Information disclosure in GetSimpleCMS-CE GetSimple CMS Community Edition 3.3.22 and earlier allows remote attackers to download sensitive files. The application places data and backups beneath the web root and delegates access control to per-directory .htaccess files, which Apache ignores when AllowOverride is disabled. Exposure requires that Apache configuration; unauthenticated requests can then retrieve user XML, backups, cryptographic salts, API keys, and authentication secrets.

CVSS severity8.7
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in GetSimpleCMS-CE GetSimple CMS Community Edition 3.3.22 and earlier allows remote attackers to download sensitive files. The application places data and backups beneath the web root and delegates access control to per-directory .htaccess files, which Apache ignores when AllowOverride is disabled. Exposure requires that Apache configuration; unauthenticated requests can then retrieve user XML, backups, cryptographic salts, API keys, and authentication secrets.

The record

CVE
CVE-2026-27161
Published
Feb 20, 2026
Updated
Feb 20, 2026
Vendor
GetSimpleCMS-CE
Product
GetSimple CMS Community Edition
Classifications
CWE-200, T1552.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 3.3.22

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GetSimpleCMS-CE · GetSimple CMS Community Editionversion=<= 3.3.22

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.7GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
T1552.001Credentials In Files

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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