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CVE-2021-3129

Laravel Ignition File Upload

9.8 CRITICALActively exploited (CISA KEV)Used in ransomwarePublic exploitEPSS 99.9%
  1. Published12 Jan 2021
  2. Added to CISA KEV18 Sept 2023
  3. Remediation due9 Oct 2023
Actively exploited (CISA KEV)

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().

Added to KEV: 18 Sept 2023Federal remediation due: 9 Oct 2023Used in ransomware

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Facade Ignition< 2.5.2

Remediation

Fixed in
Facade Ignition≥ 2.5.2

References

Frequently asked

Is CVE-2021-3129 being actively exploited?

Yes. CVE-2021-3129 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 18 Sept 2023. It has been used in ransomware campaigns.

How severe is CVE-2021-3129?

CVE-2021-3129 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 99.9% probability of exploitation.

Which products are affected by CVE-2021-3129?

Affected products include Facade Ignition.

How do I fix CVE-2021-3129?

Upgrade affected software to a fixed version, for example Facade Ignition 2.5.2 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2021-3129 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.