How severe is CVE-2023-4381?

CVE-2023-4381 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2023-4381 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4381?

CVE-2023-4381 affects Instantcms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4381?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-4381 published?

CVE-2023-4381 was published on 2023-08-16 and last updated on 2026-06-17.

CVE-2023-4381

CVE-2023-4381 is a medium-severity vulnerability in Instantcms with a CVSS 3.x base score of 4.3. 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-620.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-620
Affected product: Instantcms
Published: 2023-08-16
Last modified: 2026-06-17

Description

Unverified Password Change in GitHub repository instantsoft/icms2 prior to 2.16.1-git.

Frequently asked questions

What is CVE-2023-4381?: Unverified Password Change in GitHub repository instantsoft/icms2 prior to 2.16.1-git.
How severe is CVE-2023-4381?: CVE-2023-4381 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2023-4381 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4381?: CVE-2023-4381 affects Instantcms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4381?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-4381 published?: CVE-2023-4381 was published on 2023-08-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:instantcms:instantcms:*:*:*:*:*:*:*:*

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