CVE-2023-43154: In Macrob7 Macs Framework Content Management System (CMS) 1.1.4f, loose comparison in "isValidLogin()" functio

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2023-43154 is a critical-severity flaw (CVSS 9.8) affecting macs cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Macrob7 Macs Framework Content Management System (CMS) 1.1.4f, loose comparison in "isValidLogin()" function during login attempt results in PHP type confusion vulnerability that leads to authentication bypass and takeover of the administrator account.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 31%)
CISA exploited list	No
Weakness	CWE-843
Published	2023-09-27
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: macs cms project

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

Am I affected?

Timeline

2023-09-27 15:19 UTCPublished CVE record published
2026-06-17 06:25 UTCUpdated Record last modified

macs cms project macs cms DOWNGRADE

Affected: 1.1.4f

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.4f

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.1.4f (Debian / Ubuntu)

apt-cache madison macs-cms sudo apt install macs-cms=<VERSION_BEFORE_1.1.4f> sudo apt-mark hold macs-cms

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list macs-cms sudo dnf downgrade macs-cms-<VERSION_BEFORE_1.1.4f> sudo dnf versionlock add macs-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-2023-43154?

macs cms: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-43154 being exploited?

CVE-2023-43154 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-2023-43154 affect?

CVE-2023-43154 affects macs cms. Severity is critical (CVSS 9.8). In Macrob7 Macs Framework Content Management System (CMS) 1.1.4f, loose comparison in "isValidLogin()" function during login attempt results in PHP type confusion vulnerability that leads to authentication bypass and takeover of the adminis

How urgent is CVE-2023-43154?

Priority 57/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2023-45503 MEDIUM 5.3 DOWNGRADE SQL Injection vulnerability in Macrob7 Macs CMS 1.1.4f, allows remote attackers to execute arbitrary code, cau

References

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