CVE-2018-18888: An issue was discovered in laravelCMS through 2018-04-02

Q: How do I fix CVE-2018-18888?

laravelcms: upgrade to newer than 2018-04-02. Exact commands for each OS are on this page.

Q: Is CVE-2018-18888 being exploited?

CVE-2018-18888 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-18888 affect?

CVE-2018-18888 affects laravelcms. Severity is critical (CVSS 9.8). An issue was discovered in laravelCMS through 2018-04-02. \app\Http\Controllers\Backend\ProfileController.php allows upload of arbitrary PHP files because the file extension is not properly checked and uploaded files are not properly rename

Q: How urgent is CVE-2018-18888?

Priority 62/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2018-18888 is a critical-severity flaw (CVSS 9.8) affecting laravelcms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in laravelCMS through 2018-04-02. \app\Http\Controllers\Backend\ProfileController.php allows upload of arbitrary PHP files because the file extension is not properly checked and uploaded files are not properly renamed.

Why this priority

Critical severity
Public exploit reference
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	1.3% (top 30%)
CISA exploited list	No
Weakness	CWE-434
Published	2018-11-01
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: laravelcms project

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

Am I affected?

Timeline

2018-11-01 01:29 UTCPublished CVE record published
2026-06-17 01:48 UTCUpdated Record last modified

laravelcms project laravelcms UPGRADE

Affected: <= 2018-04-02

Fixed in: newer than 2018-04-02

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2018-04-02 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade laravelcms

Note

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

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-2018-18888?

laravelcms: upgrade to newer than 2018-04-02. Exact commands for each OS are on this page.

Is CVE-2018-18888 being exploited?

CVE-2018-18888 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-2018-18888 affect?

CVE-2018-18888 affects laravelcms. Severity is critical (CVSS 9.8). An issue was discovered in laravelCMS through 2018-04-02. \app\Http\Controllers\Backend\ProfileController.php allows upload of arbitrary PHP files because the file extension is not properly checked and uploaded files are not properly rename

How urgent is CVE-2018-18888?

Priority 62/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

References

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