TI-2024-30849 Aliases CVE-2024-45965

Unrestricted file upload in Contao

MEDIUM 62CWE-434Published 2024-10-02 · Updated 2025-08-27

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: Low · Low · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-434.

Summary

Contao before 5.5.6 allows XSS via an SVG document. This affects (in contao/core-bundle in Composer) 4.x before 4.13.54, 5.0.x through 5.3.x before 5.3.30, and 5.4.x and 5.5..x before 5.5.6.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00338 27th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed Contao (Contao): 4.13.54, 5.3.30, 5.5.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
contao	Contao	4.0.0 to before 4.13.54; 5.0.0 to before 5.3.30; 5.4.0 to before 5.5.6	4.13.54, 5.3.30, 5.5.6	Patch available	CNA

Contao Vendorcontao Affected 4.0.0 to before 4.13.54; 5.0.0 to before 5.3.30; 5.4.0 to before 5.5.6 Fixed in 4.13.54, 5.3.30, 5.5.6 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:contao:contao::::::::	4.0 to before 4.13.54; 5.0.0 to before 5.3.30; 5.4.0 to before 5.5.6	Vulnerable	contao

cpe:2.3:a:contao:contao:*:*:*:*:*:*:*:* Versions 4.0 to before 4.13.54; 5.0.0 to before 5.3.30; 5.4.0 to before 5.5.6 Vulnerable ·contao

Remediation

Fix · CNA Contao (Contao) Fixed in 4.13.54, 5.3.30, 5.5.6

Timeline

2026-10-02 Threatist record created from CVE-2024-45965

References

Exploit 1

https://grimthereaperteam.medium.com/contao-5-4-1-malicious-file-upload-xss-in-svg-30edb8820ecb

Advisory 1

https://contao.org/en/security-advisories/cross-site-scripting-through-svg-uploads

TI-2022-09661 Contao Managed Edition v1.5.0 was discovered to contain a remote command execution (RCE)… CVSS 3.1CRITICAL 9.8
TI-2023-18600 Contao cross site scripting vulnerability via input unit widget CVSS 3.1MEDIUM 6.5
TI-2022-08709 Cross site scripting via canonical tag CVSS 3.1HIGH 7.2
TI-2019-08602 Contao 4.x allows SQL Injection. CVSS 3.0CRITICAL 9.8
TI-2024-30447 Remote command execution through file upload in contao/core-bundle CVSS 3.1HIGH 8.8
TI-2019-14229 Contao 4.0 through 4.8.5 allows PHP local file inclusion. CVSS 3.1HIGH 8.8

See all 31 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences