CVE-2023-27224: An issue found in NginxProxyManager v.2.9.19 allows an attacker to execute arbitrary code via a lua script to

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CRITICAL 9.8REMOTEWATCHLISTDOWNGRADE

CVE-2023-27224 is a critical-severity flaw (CVSS 9.8) affecting nginx proxy manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue found in NginxProxyManager v.2.9.19 allows an attacker to execute arbitrary code via a lua script to the configuration file.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

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-77
Published	2023-03-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: jc21

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

Am I affected?

Timeline

2023-03-22 20:15 UTCPublished CVE record published
2026-06-17 05:44 UTCUpdated Record last modified

jc21 nginx proxy manager DOWNGRADE

Affected: 2.9.19

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.9.19

1. Check installed version

apt-cache policy nginx-proxy-manager || rpm -q nginx-proxy-manager || nginx-proxy-manager --version

2. No fixed release: DOWNGRADE to a release before 2.9.19 (Debian / Ubuntu)

apt-cache madison nginx-proxy-manager sudo apt install nginx-proxy-manager=<VERSION_BEFORE_2.9.19> sudo apt-mark hold nginx-proxy-manager

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

dnf --showduplicates list nginx-proxy-manager sudo dnf downgrade nginx-proxy-manager-<VERSION_BEFORE_2.9.19> sudo dnf versionlock add nginx-proxy-manager

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-2023-27224?

nginx proxy manager: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-27224 being exploited?

CVE-2023-27224 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-2023-27224 affect?

CVE-2023-27224 affects nginx proxy manager. Severity is critical (CVSS 9.8). An issue found in NginxProxyManager v.2.9.19 allows an attacker to execute arbitrary code via a lua script to the configuration file.

How urgent is CVE-2023-27224?

Priority 66/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

nginx vulnerabilities

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CVE-2024-46256 CRITICAL 9.8 DOWNGRADE A Command injection vulnerability in requestLetsEncryptSsl in NginxProxyManager 2.11.3 allows an attacker to R
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References

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