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CVE-2021-3129 — Unauthenticated remote code execution in...

CRITICAL
Actively Exploited

Unauthenticated remote code execution in Ignition

Published March 29, 2021Updated October 22, 2025Source: osv

What Should I Do?

Patch Immediately

This vulnerability is confirmed under active exploitation (CISA KEV). Patch within 24-48 hours if possible.

Summary

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.

Advisory Timeline

  • First published March 29, 2021 (2023 days ago).
  • Last revised October 22, 2025 — 1668 days after initial publication.
  • Added to CISA's Known Exploited Vulnerabilities catalog 902 days after publication.

Remediation

Upgrade to the fixed version using your package manager.

Composer
Update facade/ignition to 2.5.2 or later
composer require "facade/ignition:^2.5.2"
Composer
Update facade/ignition to 1.6.15 or later
composer require "facade/ignition:^1.6.15"
Composer
Update facade/ignition to 1.16.14 or later
composer require "facade/ignition:^1.16.14"
Composer
Update facade/ignition to 2.4.2 or later
composer require "facade/ignition:^2.4.2"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (4)

Affects 1 ecosystem: packagist (1).

PackageEcosystemAffectedFixed In
facade/ignition
packagist
2.5.0, 2.5.12.5.2
facade/ignition
packagist
1.0.0, 1.0.1, 1.0.2, 1.0.3 (+37 more)1.6.15
facade/ignition
packagist
1.10.0, 1.11.0, 1.11.1, 1.11.2 (+20 more)1.16.14
facade/ignition
packagist
2.0.0, 2.0.1, 2.0.10, 2.0.2 (+19 more)2.4.2

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H

References

Frequently Asked Questions

What is CVE-2021-3129?
Unauthenticated remote code execution in Ignition This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2021-3129?
CVE-2021-3129 affects facade/ignition. This vulnerability is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, meaning it is being actively exploited in the wild. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2021-3129 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Known Exploited Vulnerability

This vulnerability is in CISA's Known Exploited Vulnerabilities (KEV) catalog, indicating active exploitation in the wild.

Added to KEV catalog: September 18, 2023

Remediation deadline: October 9, 2023

Also Known As

GHSA-4qwp-7c67-jmcc

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