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CVE-2021-3129

99
FAUCET Score

CVE-2021-3129 is a critical remote code execution (RCE) vulnerability affecting Ignition versions prior to 2.5.2, notably when used with Laravel in debug mode before version 8.4.2. This flaw stems from insecure usage of file_get_contents() and file_put_contents(), allowing unauthenticated attackers to execute arbitrary code. With a CVSS score of 9.8 (CRITICAL) and an EPSS score indicating high exploitability, this vulnerability poses a severe risk, enabling full compromise of affected systems. It is actively exploited in the wild, including in known ransomware campaigns, with public exploit modules available for Metasploit and Nuclei, and significant community discussion and media coverage confirming its widespread impact.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.5.2CPE matchmatch criteria
cpe:2.3:a:facade:ignition:*:*:*:*:*:laravel:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
99.94%
Probability of exploitation in next 30 days
EPSS Percentile
100.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Added to KEV · Sep 18, 2023
Metasploit: Unauthenticated remote code execution in Ignition · Jan 13, 2021
Nuclei: CVE-2021-3129 · Feb 27, 2021
ExploitDB: EDB-49424 · Jan 14, 2021
This CVE's current EPSS score of 0.9994 is in the 100th percentile among its peer group of 36,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

composerpatch availablevia ghsa
Product: facade/ignitionFixed in: 2.5.2
composerpatch availablevia ghsa
Product: facade/ignitionFixed in: 2.4.2
composerpatch availablevia ghsa
Product: facade/ignitionFixed in: 1.16.14
composerpatch availablevia ghsa
Product: facade/ignitionFixed in: 1.6.15
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-4qwp-7c67-jmcccritical

Unauthenticated remote code execution in Ignition

Mar 29, 2021

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
packetstormsecurity.com / files/162094/Ignition-2.5.1-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
packetstormsecurity.com / files/165999/Ignition-Remote-Code-Execution.html
ExploitThird Party AdvisoryVDB Entry
github.com / facade/ignition/pull/334
PatchThird Party Advisory
ambionics.io / blog/laravel-debug-rce
ExploitThird Party Advisory