How severe is CVE-2021-43996?

CVE-2021-43996 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-43996 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43996?

CVE-2021-43996 affects Facade Ignition. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43996?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2021-43996 published?

CVE-2021-43996 was published on 2021-11-17 and last updated on 2026-06-17.

CVE-2021-43996

CVE-2021-43996 is a critical-severity vulnerability in Facade Ignition with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Facade Ignition
Published: 2021-11-17
Last modified: 2026-06-17

Description

The Ignition component before 1.16.15, and 2.0.x before 2.0.6, for Laravel has a "fix variable names" feature that can lead to incorrect access control.

Frequently asked questions

What is CVE-2021-43996?: The Ignition component before 1.16.15, and 2.0.x before 2.0.6, for Laravel has a "fix variable names" feature that can lead to incorrect access control.
How severe is CVE-2021-43996?: CVE-2021-43996 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-43996 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43996?: CVE-2021-43996 affects Facade Ignition. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43996?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-43996 published?: CVE-2021-43996 was published on 2021-11-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:facade:ignition:*:*:*:*:*:laravel:*:*

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