How severe is CVE-2023-34251?

CVE-2023-34251 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-34251 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-34251?

CVE-2023-34251 affects Getgrav Grav. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-34251?

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-2023-34251 published?

CVE-2023-34251 was published on 2023-06-14 and last updated on 2026-06-17.

CVE-2023-34251

CVE-2023-34251 is a critical-severity vulnerability in Getgrav Grav with a CVSS 3.x base score of 9.9. 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-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.9)
EPSS exploit prediction: 2% (82nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Getgrav Grav
Published: 2023-06-14
Last modified: 2026-06-17

Description

Grav is a flat-file content management system. Versions prior to 1.7.42 are vulnerable to server side template injection. Remote code execution is possible by embedding malicious PHP code on the administrator screen by a user with page editing privileges. Version 1.7.42 contains a fix for this issue.

Frequently asked questions

What is CVE-2023-34251?: Grav is a flat-file content management system. Versions prior to 1.7.42 are vulnerable to server side template injection. Remote code execution is possible by embedding malicious PHP code on the administrator screen by a user with page editing privileges. Version 1.7.42 contains a fix for this issue.
How severe is CVE-2023-34251?: CVE-2023-34251 has a CVSS 3.x base score of 9.9, rated critical severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-34251 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-34251?: CVE-2023-34251 affects Getgrav Grav. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-34251?: 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-2023-34251 published?: CVE-2023-34251 was published on 2023-06-14 and last updated on 2026-06-17.

References

Affected products (1)

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

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