Contao
CVE-2024-45398
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. |
| 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
Contao is an Open Source CMS. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. 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. Contao is an Open Source CMS. In affected versions a back end user with access to the file manager can upload malicious files and execute them on the server. Users are advised to update to Contao 4.13.49, 5.3.15 or 5.4.3. Users unable to update are advised to configure their web server so it does not execute PHP files and other scripts in the Contao file upload directory. Affected products include: Contao.
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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
Contao is an Open Source CMS. In affected versions a back end user with access to the file manager can upload malicious files and execute them on the server. Users are advised to update to Contao 4.13.49, 5.3.15 or 5.4.3. Users unable to update are advised to configure their web server so it does not execute PHP files and other scripts in the Contao file upload directory.
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
Contao Managed Edition v1.5.0 was discovered to contain a remote command execution (RCE) vulnerability via the component
Multiple cross-site request forgery (CSRF) vulnerabilities in main.php in Contao (formerly TYPOlight) 2.11.0 and earlier
Contao is a powerful open source CMS that allows you to create professional websites and scalable web applications. Rate
Contao 4.x allows SQL Injection. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no auth
Contao 4.7 allows Use of a Key Past its Expiration Date. Rated critical severity (CVSS 9.8), this vulnerability is remot
Contao before 3.5.39 and 4.x before 4.7.3 has a Weak Password Recovery Mechanism for a Forgotten Password. Rated critica
Contao before 5.5.6 allows XSS via an SVG document. Rated medium severity (CVSS 5.4), this vulnerability is remotely exp
Contao is an open source content management system. Rated medium severity (CVSS 5.4), this vulnerability is remotely exp
Unauthenticated path traversal in the Contao CMS ImagesController lets remote attackers read files from the project dire
Stored cross-site scripting in the Contao CMS comments bundle lets an unauthenticated visitor submit a comment whose ema
Information disclosure in Contao CMS allows unauthenticated front-end visitors to read the titles, URLs, and indexed tex
Unauthenticated email-flooding and user-enumeration in Contao CMS: a POST to any page containing the registration module
Exploit-DB