CVE-2021-3129

Laravel Ignition File Upload Vulnerability

n/a

CVSS

99.9%

EPSS (exploit prob.)

100.0%

EPSS percentile

Yes

Actively exploited

Yes

Ransomware use

2023-09-18

Added

MITRE ATT&CK techniques

How this vulnerability maps to adversary behaviour, from the Center for Threat-Informed Defense's public CVE→ATT&CK mappings. Use it to check whether your detections already cover the technique.

Technique	Name	Relationship
T1190	Exploit Public-Facing Application	exploitation technique
T1059	Command and Scripting Interpreter	primary impact

Summary

Laravel Ignition contains a file upload vulnerability that allows unauthenticated remote attackers to execute malicious code due to insecure usage of file_get_contents() and file_put_contents().

Affected software

Vendor: Laravel · Product: Ignition

What to do

This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.

Related vulnerabilities in Laravel

CVE	Name	EPSS	Exploited
CVE-2025-54068	Laravel Livewire Code Injection Vulnerability	95.4%	Yes
CVE-2018-15133	Laravel Deserialization of Untrusted Data Vulnerability	76.8%	Yes

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