CVE-2021-3129Known exploitationPublic exploitNetwork attack vector

Unauthenticated code execution via unrestricted stream-wrapper paths

Published Jan 12, 2021 · Updated Oct 21, 2025

Code injection in Facade Ignition before 2.5.2 allows remote attackers to execute code through a Laravel debug endpoint. MakeViewVariableOptionalSolution passes the attacker-controlled viewFile path to file_get_contents() and file_put_contents(), permitting php:// filters and phar:// deserialization. Exploitation requires debug mode and uses the writable Laravel log as a PHAR payload, yielding command execution under the web process account.

CVSS severity9.8
Critical
EPSS probability99.94%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Facade Ignition before 2.5.2 allows remote attackers to execute code through a Laravel debug endpoint. MakeViewVariableOptionalSolution passes the attacker-controlled viewFile path to file_get_contents() and file_put_contents(), permitting php:// filters and phar:// deserialization. Exploitation requires debug mode and uses the writable Laravel log as a PHAR payload, yielding command execution under the web process account.

The record

CVE
CVE-2021-3129
Published
Jan 12, 2021
Updated
Oct 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 12, 2021CVE publishedPublication date reported by the CVE source.
  2. Oct 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsShadowserver observations through Sep 15, 2026. Gaps indicate unavailable data.
Sep 9, 2026Sep 15, 2026
View daily counts
Reporting dayUnique IPs
Sep 9, 2026Unavailable
Sep 10, 2026Unavailable
Sep 11, 2026Unavailable
Sep 12, 2026Unavailable
Sep 13, 2026Unavailable
Sep 14, 20263
Sep 15, 2026Unavailable
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

See the directory against your own environment.

Your stack

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