How severe is CVE-2018-16763?

CVE-2018-16763 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2018-16763?

Affected package information for CVE-2018-16763 is not yet fully mapped. Check the official advisory links for details.

How do I fix CVE-2018-16763?

No fixed version has been published for CVE-2018-16763 yet. Monitor the advisory for updates, apply mitigations recommended by the vendor, and use O3 Security to track when a fix becomes available in your stack.

Is CVE-2018-16763 actively exploited in the wild?

Yes. There are 21 known exploit references for CVE-2018-16763, including 3 documented proof-of-concept exploits on Exploit-DB and 13 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2018-16763?

CVE-2018-16763 has an EPSS (Exploit Prediction Scoring System) score of 93.9%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

Is there exploit tooling available for CVE-2018-16763?

A Nuclei detection template exists for CVE-2018-16763, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2018-16763 published, and has it been updated?

CVE-2018-16763 was published on September 9, 2018 and was last updated on April 10, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

CVE-2018-16763

CRITICAL

Published

Sep 9, 2018

Updated

Apr 10, 2026

Affected

0 pkgs

Patched

None yet

Exploits

21 known

EPSS Exploitation Probability

via FIRST.org ↗

93.9%probability of exploitation in next 30 days

Very High Risk100th percentile0.00%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Description

FUEL CMS 1.4.1 allows PHP Code Evaluation via the pages/select/ filter parameter or the preview/ data parameter. This can lead to Pre-Auth Remote Code Execution.

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-50477webappsphp

Fuel CMS 1.4.1 - Remote Code Execution (3)

by Padsala Trushal · Nov 3, 2021

Exploit-DB Source

EDB-49487webappsphp

Fuel CMS 1.4.1 - Remote Code Execution (2)

by Alexandre ZANNI · Jan 28, 2021

Exploit-DB Source

EDB-47138webappslinux

fuel CMS 1.4.1 - Remote Code Execution (1)

by 0xd0ff9 · Jul 19, 2019

Exploit-DB Source

Frequently Asked Questions

FUEL CMS 1.4.1 allows PHP Code Evaluation via the pages/select/ filter parameter or the preview/ data parameter. This can lead to Pre-Auth Remote Code Execution.

O3 Security · Impact-Aware SCA

Is CVE-2018-16763 in your stack?

O3 detects CVE-2018-16763 across dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works

CVSS Score

9.8/10

CVSS v3 base score

Vector breakdown

AV:Attack Vector

Network

AC:Attack Complexity

Low

PR:Privileges Required

None

UI:User Interaction

None

S:Scope

Unchanged

C:Confidentiality

High

I:Integrity

High

A:Availability

High

Raw vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaponization

OpenSSF Scorecard

Package health score

FUEL-CMS

2.4/10

Code-Review0/10

Maintained0/10

Branch-Protection0/10

Assessed Jun 8, 2026

Timeline

Disclosed

Sep 9, 2018

First exploit

Nov 3, 2021

Last updated

Apr 10, 2026

Identifiers

CVE-2018-16763

References

Fixgithub.com Evidenceexploit-db.com Evidencepacketstormsecurity.com Evidencepacketstormsecurity.com Evidencepacketstormsecurity.com Evidence0xd0ff9.wordpress.com

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