Craft Cms
CVE-2018-3814
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V5 - File Handling File type validation, storage isolation
MITRE ATT&CK
2 techniques across 2 tactics: Command and Control, Persistence The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A remote attacker could upload malicious files that can be executed on the server by sending crafted requests to the affected application. |
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Alert meAnalysisAI
Craft CMS 2.6.3000 allows remote attackers to execute arbitrary PHP code by using the "Assets->Upload files" screen and then the "Replace it" option, because this allows a .jpg file to have embedded. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate file types server-side, store uploads outside webroot, use random filenames, scan for malware.
Affected Packages
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 Unrestricted File Upload (CWE-434), which allows attackers to upload malicious files that can be executed on the server. Craft CMS 2.6.3000 allows remote attackers to execute arbitrary PHP code by using the "Assets->Upload files" screen and then the "Replace it" option, because this allows a .jpg file to have embedded PHP code, and then be renamed to a .php extension. Affected products include: Craftcms Craft Cms.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
Craft CMS 2.6.3000 allows remote attackers to execute arbitrary PHP code by using the "Assets->Upload files" screen and then the "Replace it" option, because this allows a .jpg file to have embedded PHP code, and then be renamed to a .php extension.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
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.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Malicious file upload attacks exploit insufficient validation when web applications accept user-provided files.
Affected Products (CPE)NVD
Craft CMS versions 3.x through 5.x contain a critical remote code execution vulnerability (CVSS 10.0) that allows unauth
Craft CMS stores arbitrary content provided by unauthenticated users in session files. Rated medium severity (CVSS 6.9),
Craft CMS is a platform for creating digital experiences. Rated critical severity (CVSS 9.8), this vulnerability is remo
Craft is a flexible, user-friendly CMS for creating custom digital experiences on the web and beyond. Rated critical sev
Craft CMS up to v3.7.31 was discovered to contain a SQL injection vulnerability via the GraphQL API endpoint. Rated crit
The SEOmatic component before 3.3.0 for Craft CMS allows Server-Side Template Injection that leads to RCE via malformed
RCE in Craft CMS before 4.17.0-beta.1/5.9.0-beta.1 via template injection for authenticated admins. PoC and patch availa
Authenticated remote code execution in Craft CMS versions 5.0.0-RC1 through 5.8.20 and 4.0.0-RC1 through 4.16.16 lets an
SQL injection in Craft CMS 4.0.0-RC1 through 4.16.17 and 5.0.0-RC1 through 5.8.21 allows authenticated Control Panel use
An issue found in CraftCMS v.3.8.1 allows a remote attacker to execute arbitrary code via a crafted script to the Sectio
Craft CMS through 3.7.36 allows a remote unauthenticated attacker, who knows at least one valid username, to reset the a
Craft is a content management system (CMS). [CVSS 7.5 HIGH]
Exploit-DB