CVE-2018-14667 KEVPublic exploit Critical · 9.8 EPSS 74.2%

Red Hat JBoss RichFaces Framework Expression Language Injection Vulnerability

Red Hat · JBoss RichFaces Framework

Summary

The Red Hat JBoss RichFaces Framework (versions 3.X through 3.3.4) contains an Expression Language injection flaw in its UserResource resource. A remote, unauthenticated attacker with network access can exploit it, requiring no user interaction or special configuration, by using a chain of Java serialized objects via org.ajax4jsf.resource.UserResource$UriData to execute arbitrary code.

Official description · NVD

The RichFaces Framework 3.X through 3.3.4 is vulnerable to Expression Language (EL) injection via the UserResource resource. A remote, unauthenticated attacker could exploit this to execute arbitrary code using a chain of java serialized objects via org.ajax4jsf.resource.UserResource$UriData.

Breakdown

69.8 / 100

Exploited: Yes, in CISA KEV
Reports: 0
Tactics: 2/15

How an attack unfolds

Based on mappings. Select a step to see the evidence.

How attackers get in
- Break in through an internet-facing appT1190 · Exploit Public-Facing ApplicationAI-written (claude-haiku-5-5)Medium confidence149 general detection rules
What they do
- Run commands on the systemT1059 · Command and Scripting InterpreterAI-written (claude-haiku-5-5)Medium confidence95 general detection rules

First seen exploited 5 years after disclosure. Public exploit code (PoC-in-GitHub) appeared 12 days after disclosure.

Disclosed6 Nov 2018day 0
Public exploit codePoC-in-GitHub18 Nov 2018+12 days
First seen exploitedVulnCheck KEV evidenceAdded to CISA KEVEU database agrees28 Sep 2023+5 yrs

CISA KEV listing is when exploitation was confirmed, not necessarily the first attack.

techniques

2 , grouped by in kill-chain order, 2 cited passages 2

Initial AccessTA0001

Exploit Public-Facing Application T1190 Medium

AI mapping from the description · how it is exploited

Remote unauthenticated exploit of public-facing web application

A remote, unauthenticated attacker could exploit this

From the official description (NVD) Original ↗

ExecutionTA0002

Command and Scripting Interpreter T1059 Medium

AI mapping from the description · primary impact

Arbitrary code execution on the server

execute arbitrary code using a chain of java serialized objects

From the official description (NVD) Original ↗

Detection

0 rules for this CVE · 244 general rules for its techniques

Rules for this CVE

0 that reference CVE-2018-14667 directly.

CVE-specific rules are not available in this build. Search SigmaHQ ↗

General rules for this CVE’s techniques

These detect the technique in general, not this specific vulnerability.

Exploit Public-Facing ApplicationT1190149 general rules

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CVE-2020-5902 F5 BIG-IP Exploitation Attemptcriticaltest

All 149 on SigmaHQ ↗

Command and Scripting InterpreterT105995 general rules

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Windows Defender AMSI Trigger Detectedhighstable
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Abusable DLL Potential Sideloading From Suspicious Locationhightest
Add Insecure Download Source To Wingethightest

All 95 on SigmaHQ ↗

Sigma rules © SigmaHQ, Detection Rule License 1.1; linked, not reproduced.

Am I affected? What do I upgrade to?

From GitHub Security Advisories and OSV

1 package in 1 ecosystem. Main package: org.richfaces:richfaces-core.

Mavenorg.richfaces:richfaces-coreGHSA-j7mw-7crr-658v

Upgrade to 3.3.4 or later

Set the version to 3.3.4 or later in your pom.xml or build.gradle.

The first fix for CVE-2018-14667. No other CVE tracked by Patchfirst affects this package.

Affected versions

If you run	Upgrade to
All versions before 3.3.4	3.3.4

“Up to” means the second version is the fix and is not affected.

Check your lockfile against all CVEs

What security researchers reported

Not named in any threat report yet

Also mentioned in 50 community threat pulses (AlienVault OTX)

Weaker evidence

Pulses are indicator collections that anyone can publish. A mention is not confirmation of exploitation.

Actively_Exploited_Kev | Oct 29, 202628 Oct 2026
Actively_Exploited_Kev | Oct 28, 202627 Oct 2026
Actively_Exploited_Kev | Oct 27, 202626 Oct 2026
Actively_Exploited_Kev | Oct 24, 202623 Oct 2026
Actively_Exploited_Kev | Oct 23, 202622 Oct 2026
Actively_Exploited_Kev | Oct 22, 202621 Oct 2026
44 more on OTX

References

9 links, grouped by NVD tag (8 duplicates merged)

Exploitation evidence

Exploited in the wild

Listed since 28 Sep 2023. Federal due date 19 Oct 2023. No recorded ransomware use.

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

ENISA

Marked exploited since 28 Sep 2023. EUVD-2022-4307

Public exploitAdvisories link exploit code.

, 30 Oct 2026

74.2%Top 0.51%

Chance of exploitation in the next 30 days. of scored CVEs (riskier than 99.49%).

3.1

9.8Critical · 9.8

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

Priority factorsFormula

In a KEV cataloglisted in CISA KEV and VulnCheck KEV 35.0/35

Recent KEV listingadded 1129 days ago 0.0/10

Known ransomware usenot known 0.0/10

EPSS percentilepercentile 0.9949 19.9/20

Threat reports0 reports 0.0/10

Public exploit code1 NVD exploit link; 7 PoC-in-GitHub repos 5.0/5

Mentioned in OTX pulses50 pulses 3.0/3

CVSS base scorebase score 9.8 6.9/7

End-of-life productsupported or unknown 0.0

Total69.8

Record

Published: 6 Nov 2018
Modified: 17 Jun 2026
: CWE-94 Improper Control of Generation of Code
Elsewhere: NVD CVE.org KEV JSON

How an attack unfolds

1How attackers get in

2What they do

Exploitation timelineExploitation timelineDated milestones for a CVE: when it was disclosed, when exploit code became public, when exploitation was confirmed, and when threat reports named it.

ATT&CKMITRE ATT&CKA public catalogue of the techniques attackers use, maintained by MITRE. Patchfirst uses it to describe what attackers do with a vulnerability. techniques

Initial AccessTA0001

ExecutionTA0002

Detection

Rules for this CVE

General rules for this CVE’s techniques

Am I affected? What do I upgrade to?

Affected versions

What security researchers reported

Also mentioned in 50 community threat pulses (AlienVault OTX)

References

Vendor Advisory 5

US Government Resource 1

Third Party Advisory 3

How attackers get in

What they do

techniques