CVE-2026-27161: GetSimple CMS is a content management system

Q: How do I fix CVE-2026-27161?

getsimple cms: upgrade to newer than 3.3.22. Exact commands for each OS are on this page.

Q: Is CVE-2026-27161 being exploited?

CVE-2026-27161 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-27161 affect?

CVE-2026-27161 affects getsimple cms. Severity is high (CVSS 7.5). 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

Q: How urgent is CVE-2026-27161?

Priority 46/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2026-27161 is a high-severity flaw (CVSS 7.5) affecting getsimple cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 key

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 61%)
CISA exploited list	No
Weakness	CWE-200
Published	2026-02-21
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: getsimple-ce

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-02-21 00:16 UTCPublished CVE record published
2026-06-17 10:26 UTCUpdated Record last modified

getsimple-ce getsimple cms UPGRADE

Affected: <= 3.3.22

Fixed in: newer than 3.3.22

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy getsimple-cms || rpm -q getsimple-cms || getsimple-cms --version

2. UPGRADE to newer than 3.3.22 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade getsimple-cms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade getsimple-cms

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-27161?

getsimple cms: upgrade to newer than 3.3.22. Exact commands for each OS are on this page.

Is CVE-2026-27161 being exploited?

CVE-2026-27161 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-27161 affect?

CVE-2026-27161 affects getsimple cms. Severity is high (CVSS 7.5). 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

How urgent is CVE-2026-27161?

Priority 46/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-26351 MEDIUM 4.8 UPGRADE GetSimpleCMS Community Edition (CE) versions prior to 3.3.22 (3.3.16 tested) contains a stored cross-site scri
CVE-2026-28495 CRITICAL 9.6 UPGRADE GetSimple CMS is a content management system
CVE-2026-27202 HIGH 7.5 DOWNGRADE GetSimple CMS is a content management system
CVE-2026-27147 MEDIUM 5.4 UPGRADE GetSimple CMS is a content management system
CVE-2026-27146 MEDIUM 4.5 UPGRADE GetSimple CMS is a content management system

References

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