Laravel · Ignition

CVE-2021-3129

Laravel Ignition File Upload Vulnerability

Exploited in attacks Used by ransomware Critical 9.8 Attack chance: 99.9%

What it is

Ignition before 2.5.2, as used in Laravel and other products, allows unauthenticated remote attackers to execute arbitrary code because of insecure usage of file_get_contents() and file_put_contents(). This is exploitable on sites using debug mode with Laravel before 8.4.2.

CISA: 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().

What to do

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Deadline for US federal agencies: October 9, 2023

Added to the CISA list: September 18, 2023
Published: January 12, 2021
Severity: Critical 9.8 CVSS 3.1
Chance of attacks in the next 30 days (EPSS): 99.9% in the top 0.1% of all known vulnerabilities
More details: NVD · CVE.org · CISA

All references (4)

More exploited flaws from Laravel

Added	Vulnerability	Product	Severity	Attack chance
Mar 20, 2026	Code InjectionCVE-2025-54068	Livewire	Critical 9.2	96%
Jan 16, 2024	Deserialization of Untrusted DataCVE-2018-15133	Laravel Framework	High 8.1	77%

All of them →

Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.