CVE-2023-6901: A vulnerability, which was classified as critical, was found in codelyfe Stupid Simple CMS up to 1.2.3

This week

HIGH 7.3REMOTEUPGRADE

CVE-2023-6901 is a high-severity flaw (CVSS 7.3) affecting stupid simple cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability, which was classified as critical, was found in codelyfe Stupid Simple CMS up to 1.2.3. This affects an unknown part of the file /terminal/handle-command.php of the component HTTP POST Request Handler. The manipulation of the argument command with the input whoami leads to os command injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The associated identifier of

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	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.9% (top 13%)
CISA exploited list	No
Weakness	CWE-78
Published	2023-12-17
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: codelyfe

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

Am I affected?

Timeline

2023-12-17 14:15 UTCPublished CVE record published
2026-06-17 06:51 UTCUpdated Record last modified

codelyfe stupid simple cms UPGRADE

Affected: >= 1.1.7 and <= 1.2.3

Fixed in: newer than 1.2.3

Safe to downgrade to: a release before 1.1.7

1. Check installed version

apt-cache policy stupid-simple-cms || rpm -q stupid-simple-cms || stupid-simple-cms --version

2. UPGRADE to newer than 1.2.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade stupid-simple-cms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade stupid-simple-cms

Note

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

3. If no update is available yet, DOWNGRADE to a release before 1.1.7 (Debian / Ubuntu)

apt-cache madison stupid-simple-cms sudo apt install stupid-simple-cms=<VERSION_BEFORE_1.1.7> sudo apt-mark hold stupid-simple-cms

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list stupid-simple-cms sudo dnf downgrade stupid-simple-cms-<VERSION_BEFORE_1.1.7> sudo dnf versionlock add stupid-simple-cms

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2023-6901?

stupid simple cms: upgrade to newer than 1.2.3. Exact commands for each OS are on this page.

Is CVE-2023-6901 being exploited?

CVE-2023-6901 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-2023-6901 affect?

CVE-2023-6901 affects stupid simple cms. Severity is high (CVSS 7.3). A vulnerability, which was classified as critical, was found in codelyfe Stupid Simple CMS up to 1.2.3. This affects an unknown part of the file /terminal/handle-command.php of the component HTTP POST Request Handler. The manipulation of th

How urgent is CVE-2023-6901?

Priority 57/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2024-3202 LOW 3.7 UPGRADE A vulnerability, which was classified as problematic, has been found in codelyfe Stupid Simple CMS 1.2.4
CVE-2024-27689 HIGH 8.8 UPGRADE Stupid Simple CMS v1.2.4 was discovered to contain a Cross-Site Request Forgery (CSRF) via /update-article.php
CVE-2024-27559 MEDIUM 6.3 UPGRADE Stupid Simple CMS v1.2.4 was discovered to contain a Cross-Site Request Forgery (CSRF) via the component /save
CVE-2024-27558 MEDIUM 6.1 UPGRADE Stupid Simple CMS 1.2.4 is vulnerable to Cross Site Scripting (XSS) within the blog title of the settings.
CVE-2024-22715 HIGH 8.8 UPGRADE Stupid Simple CMS <=1.2.4 was discovered to contain a Cross-Site Request Forgery (CSRF) via the component /adm

References

← Back to latest CVEs