CVE-2025-54418: CodeIgniter is a PHP full-stack web framework

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2025-54418 is a critical-severity flaw (CVSS 9.8) affecting codeigniter. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

CodeIgniter is a PHP full-stack web framework. A command injection vulnerability present in versions prior to 4.6.2 affects applications that use the ImageMagick handler for image processing (`imagick` as the image library) and either allow file uploads with user-controlled filenames and process uploaded images using the `resize()` method or use the `text()` method with user-controlled text content or options. An attacker can upload a file with a

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.5% (top 25%)
CISA exploited list	No
Weakness	CWE-78
Published	2025-07-28
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: codeigniter

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

Am I affected?

Timeline

2025-07-28 15:15 UTCPublished CVE record published
2026-06-17 09:40 UTCUpdated Record last modified

codeigniter codeigniter UPGRADE

Affected: >= 4.0.0 and < 4.6.2

Fixed in: 4.6.2

Safe to downgrade to: a release before 4.0.0

1. Check installed version

apt-cache policy codeigniter || rpm -q codeigniter || codeigniter --version

2. UPGRADE to 4.6.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade codeigniter

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade codeigniter

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 4.0.0 (Debian / Ubuntu)

apt-cache madison codeigniter sudo apt install codeigniter=<VERSION_BEFORE_4.0.0> sudo apt-mark hold codeigniter

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

dnf --showduplicates list codeigniter sudo dnf downgrade codeigniter-<VERSION_BEFORE_4.0.0> sudo dnf versionlock add codeigniter

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-2025-54418?

codeigniter: upgrade to 4.6.2. Exact commands for each OS are on this page.

Is CVE-2025-54418 being exploited?

CVE-2025-54418 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-2025-54418 affect?

CVE-2025-54418 affects codeigniter. Severity is critical (CVSS 9.8). CodeIgniter is a PHP full-stack web framework. A command injection vulnerability present in versions prior to 4.6.2 affects applications that use the ImageMagick handler for image processing (`imagick` as the image library) and either allow

How urgent is CVE-2025-54418?

Priority 58/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities · ImageMagick vulnerabilities

Related CVEs

CVE-2024-41344 HIGH 7.5 DOWNGRADE A Cross-Site Request Forgery (CSRF) in Codeigniter 3.1.13 allows attackers to arbitrarily change the Administr

References

← Back to latest CVEs