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Codeigniter CVE-2023-32692

CRITICAL
Code Injection (CWE-94)
2023-05-30 security-advisories@github.com
9.8
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Code injection prevention, sandbox exec
MITRE ATT&CK

2 techniques across 2 tactics: Execution, Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.

Exploit ScenarioDerived

A remote attacker could inject and execute arbitrary code within the application by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
Patch available 1.1% exploitation probability (EPSS)

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AnalysisAI

CodeIgniter is a PHP full-stack web framework. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Never evaluate user-controlled input as code. Use sandboxing, disable dangerous functions, apply strict input validation.

Affected Packages

composer codeigniter4/framework fix: 4.3.5

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in composer

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Code Injection (CWE-94), which allows attackers to inject and execute arbitrary code within the application. CodeIgniter is a PHP full-stack web framework. This vulnerability allows attackers to execute arbitrary code when you use Validation Placeholders. The vulnerability exists in the Validation library, and validation methods in the controller and in-model validation are also vulnerable because they use the Validation library internally. This issue is patched in version 4.3.5. Affected products include: Codeigniter. Version information: version 4.3.5..

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

CodeIgniter is a PHP full-stack web framework. This vulnerability allows attackers to execute arbitrary code when you use Validation Placeholders. The vulnerability exists in the Validation library, and validation methods in the controller and in-model validation are also vulnerable because they use the Validation library internally. This issue is patched in version 4.3.5.

Threat Intelligence Overview

EPSS Score
1.1%
Top 37% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 1.1%
Patch available Yes
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

50
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +49
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Code Injection CRITICAL

Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Affected Products (CPE)NVD

cpe:2.3:a:codeigniter:codeigniter:*:*:*:*:*:*:*:*
CVE-2014-8684 CRITICAL POC
9.8 Sep 19

CodeIgniter before 3.0 and Kohana 3.2.3 and earlier and 3.3.x through 3.3.2 make it easier for remote attackers to spoof

CVE-2014-8686 CRITICAL POC
9.8 Sep 19

CodeIgniter before 2.2.0 makes it easier for attackers to decode session cookies by leveraging fallback to a custom XOR-

CVE-2022-40835 CRITICAL POC
9.8 Oct 07

B.C. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low att

CVE-2022-40834 CRITICAL POC
9.8 Oct 07

B.C. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low att

CVE-2022-40833 CRITICAL POC
9.8 Oct 07

B.C. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low att

CVE-2022-40832 CRITICAL POC
9.8 Oct 07

B.C. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low att

CVE-2022-40831 CRITICAL POC
9.8 Oct 07

B.C. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low att

CVE-2022-40830 CRITICAL POC
9.8 Oct 07

B.C. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low att

CVE-2022-40829 CRITICAL POC
9.8 Oct 07

B.C. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low att

CVE-2022-40828 CRITICAL POC
9.8 Oct 07

B.C. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low att

CVE-2022-40827 CRITICAL POC
9.8 Oct 07

B.C. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low att

CVE-2022-40826 CRITICAL POC
9.8 Oct 07

B.C. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low att

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