CVE-2024-55085: GetSimple CMS CE 3.3.19 suffers from arbitrary code execution in the template editing function in the backgrou

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CRITICAL 9.8REMOTEDOWNGRADE

CVE-2024-55085 is a critical-severity flaw (CVSS 9.8) affecting getsimple cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

GetSimple CMS CE 3.3.19 suffers from arbitrary code execution in the template editing function in the background management system, which can be used by an attacker to implement RCE.

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	0.9% (top 42%)
CISA exploited list	No
Weakness	CWE-94
Published	2024-12-16
Last modified	2026-06-17

Publisher (CNA): MITRE · 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

2024-12-16 23:15 UTCPublished CVE record published
2026-06-17 08:10 UTCUpdated Record last modified

getsimple-ce getsimple cms DOWNGRADE

Affected: 3.3.19

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.3.19

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.3.19 (Debian / Ubuntu)

apt-cache madison getsimple-cms sudo apt install getsimple-cms=<VERSION_BEFORE_3.3.19> sudo apt-mark hold getsimple-cms

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

dnf --showduplicates list getsimple-cms sudo dnf downgrade getsimple-cms-<VERSION_BEFORE_3.3.19> sudo dnf versionlock add getsimple-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-2024-55085?

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

Is CVE-2024-55085 being exploited?

CVE-2024-55085 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-2024-55085 affect?

CVE-2024-55085 affects getsimple cms. Severity is critical (CVSS 9.8). GetSimple CMS CE 3.3.19 suffers from arbitrary code execution in the template editing function in the background management system, which can be used by an attacker to implement RCE.

How urgent is CVE-2024-55085?

Priority 54/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

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References

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