How severe is CVE-2021-3924?

CVE-2021-3924 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-3924 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-3924?

CVE-2021-3924 affects Getgrav Grav. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-3924?

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

When was CVE-2021-3924 published?

CVE-2021-3924 was published on 2021-11-05 and last updated on 2026-06-17.

CVE-2021-3924

CVE-2021-3924 is a high-severity vulnerability in Getgrav Grav with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Getgrav Grav
Published: 2021-11-05
Last modified: 2026-06-17

Description

grav is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Frequently asked questions

What is CVE-2021-3924?: grav is vulnerable to Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
How severe is CVE-2021-3924?: CVE-2021-3924 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-3924 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-3924?: CVE-2021-3924 affects Getgrav Grav. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-3924?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-3924 published?: CVE-2021-3924 was published on 2021-11-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:getgrav:grav:*:*:*:*:*:*:*:*

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