How severe is CVE-2023-6566?

CVE-2023-6566 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-6566 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-6566?

CVE-2023-6566 affects Microweber. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-6566?

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

When was CVE-2023-6566 published?

CVE-2023-6566 was published on 2023-12-07 and last updated on 2026-06-17.

CVE-2023-6566

CVE-2023-6566 is a medium-severity vulnerability in Microweber with a CVSS 3.x base score of 6.5. 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-840.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-840
Affected product: Microweber
Published: 2023-12-07
Last modified: 2026-06-17

Description

Business Logic Errors in GitHub repository microweber/microweber prior to 2.0.

Frequently asked questions

What is CVE-2023-6566?: Business Logic Errors in GitHub repository microweber/microweber prior to 2.0.
How severe is CVE-2023-6566?: CVE-2023-6566 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-6566 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-6566?: CVE-2023-6566 affects Microweber. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-6566?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-6566 published?: CVE-2023-6566 was published on 2023-12-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:microweber:microweber:*:*:*:*:*:*:*:*

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Other CWE-840 vulnerabilities

CVE-2022-4719 — Critical (CVSS 9.8): Business Logic Errors in GitHub repository ikus060/rdiffweb prior to 2.5.5.
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