How severe is CVE-2022-28397?

CVE-2022-28397 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-2022-28397 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-28397?

CVE-2022-28397 affects Ghost. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-28397?

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-2022-28397 published?

CVE-2022-28397 was published on 2022-04-12 and last updated on 2026-07-05.

CVE-2022-28397

CVE-2022-28397 is a critical-severity vulnerability in Ghost 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. The underlying weakness is classified as CWE-434.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 3% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Ghost
Published: 2022-04-12
Last modified: 2026-07-05

Description

An arbitrary file upload vulnerability in the file upload module of Ghost CMS v4.42.0 allows attackers to execute arbitrary code via a crafted file. NOTE: Vendor states as detailed in Ghost's security documentation, files can only be uploaded and published by trusted users, this is intentional.

Frequently asked questions

What is CVE-2022-28397?: An arbitrary file upload vulnerability in the file upload module of Ghost CMS v4.42.0 allows attackers to execute arbitrary code via a crafted file. NOTE: Vendor states as detailed in Ghost's security documentation, files can only be uploaded and published by trusted users, this is intentional.
How severe is CVE-2022-28397?: CVE-2022-28397 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-2022-28397 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-28397?: CVE-2022-28397 affects Ghost. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-28397?: 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-2022-28397 published?: CVE-2022-28397 was published on 2022-04-12 and last updated on 2026-07-05.

References

Affected products (1)

cpe:2.3:a:ghost:ghost:4.42.0:*:*:*:*:node.js:*:*

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