How severe is CVE-2023-52077?

CVE-2023-52077 has a CVSS 3.x base score of 8.9, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2023-52077 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-52077?

CVE-2023-52077 affects Nexryai Nexkey. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-52077?

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-2023-52077 published?

CVE-2023-52077 was published on 2023-12-27 and last updated on 2026-06-17.

CVE-2023-52077

CVE-2023-52077 is a high-severity vulnerability in Nexryai Nexkey with a CVSS 3.x base score of 8.9. 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-863.

Key facts

Severity: High (CVSS 3.x base score 8.9)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Nexryai Nexkey
Published: 2023-12-27
Last modified: 2026-06-17

Description

Nexkey is a lightweight fork of Misskey v12 optimized for small to medium size servers. Prior to 12.23Q4.5, Nexkey allows external apps using tokens issued by administrators and moderators to call admin APIs. This allows malicious third-party apps to perform operations such as updating server settings, as well as compromise object storage and email server credentials. This issue has been patched in 12.23Q4.5.

Frequently asked questions

What is CVE-2023-52077?: Nexkey is a lightweight fork of Misskey v12 optimized for small to medium size servers. Prior to 12.23Q4.5, Nexkey allows external apps using tokens issued by administrators and moderators to call admin APIs. This allows malicious third-party apps to perform operations such as updating server settings, as well as compromise object storage and email server credentials. This issue has been patched in 12.23Q4.5.
How severe is CVE-2023-52077?: CVE-2023-52077 has a CVSS 3.x base score of 8.9, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2023-52077 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-52077?: CVE-2023-52077 affects Nexryai Nexkey. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-52077?: 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-2023-52077 published?: CVE-2023-52077 was published on 2023-12-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nexryai:nexkey:*:*:*:*:*:node.js:*:*

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