CVE-2021-3129
CriticalExploitedPublic exploitUnauthenticated remote code execution in Ignition
Published Mar 29, 2021 · Updated Jul 9, 2026 · Also known as GHSA-4qwp-7c67-jmcc, TR-21-0054
Key Facts
Patch immediately- CVE-2021-3129 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Ignition (Facade), facade/ignition (composer).
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 18, 2021 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 100% probability of exploitation in the next 30 days.
- Fixed versions are available, including Ignition 2.5.2, facade/ignition 1.16.14, facade/ignition 1.6.15.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
100%
Higher than 99.9% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2021-3129 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Sep 18, 2023 | Oct 9, 2023 | Known |
| Industry KEV feed | Mar 18, 2021 | Oct 9, 2023 | Known |
| CIRCL KEV | Sep 18, 2023 | Oct 9, 2023 | Known |
| ENISA EUVD | Sep 18, 2023 | n/a | Not reported |
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| IgnitionFacade | See advisory | 2.5.2 |
| facade/ignitioncomposer | >= 1.7.0 | 1.6.15 |
Patched Releases
Ignition
2.5.2
facade/ignition
1.16.14, 1.6.15, 2.4.2, 2.5.2
Timeline
Added to Industry KEV feed
Mar 18, 2021
Publicly disclosed
Mar 29, 2021
Added to CISA KEV
Sep 18, 2023
Added to CIRCL KEV
Sep 18, 2023
Added to ENISA EUVD
Sep 18, 2023
Last updated
Jul 9, 2026
Weakness Type
- CWE-94 Improper Control of Generation of Code ('Code Injection')
References
- advisoryGHSA advisory
- advisoryhttps://github.com/facade/ignition/commit/11ffca14abd22db779d90b12e193f8000f6d184b
- advisoryhttps://github.com/FriendsOfPHP/security-advisories/blob/master/facade/ignition/CVE-2021-3129.yaml
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2021-3129
- advisoryhttps://www.cybersecurity-help.cz/exploits/49661/?ref=bulletin
FAQ
Common Questions.
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().
Affected: Ignition (Facade); facade/ignition (composer) versions >= 1.7.0. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Mar 18, 2021 and is known to be used in ransomware campaigns.
Yes. It was added on Sep 18, 2023 with a federal remediation due date of Oct 9, 2023.
Public exploit code is available.
Fixed versions are available, including Ignition 2.5.2, facade/ignition 1.16.14, facade/ignition 1.6.15.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2021-3129 Running On Your Attack Surface?
Brandefense maps vulnerabilities like this one to your internet-facing assets and tells you exactly where to patch.
Request A Demo