How severe is CVE-2023-51665?

CVE-2023-51665 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-2023-51665 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-51665?

CVE-2023-51665 affects Audiobookshelf. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-51665?

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

When was CVE-2023-51665 published?

CVE-2023-51665 was published on 2023-12-27 and last updated on 2026-06-17.

CVE-2023-51665

CVE-2023-51665 is a medium-severity vulnerability in Audiobookshelf 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-918.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (27th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-918
Affected product: Audiobookshelf
Published: 2023-12-27
Last modified: 2026-06-17

Description

Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.7.0, Audiobookshelf is vulnerable to unauthenticated blind server-side request (SSRF) vulnerability in Auth.js. This vulnerability has been addressed in version 2.7.0. There are no known workarounds for this vulnerability.

Frequently asked questions

What is CVE-2023-51665?: Audiobookshelf is a self-hosted audiobook and podcast server. Prior to 2.7.0, Audiobookshelf is vulnerable to unauthenticated blind server-side request (SSRF) vulnerability in Auth.js. This vulnerability has been addressed in version 2.7.0. There are no known workarounds for this vulnerability.
How severe is CVE-2023-51665?: CVE-2023-51665 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-2023-51665 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (27th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-51665?: CVE-2023-51665 affects Audiobookshelf. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-51665?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-51665 published?: CVE-2023-51665 was published on 2023-12-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:audiobookshelf:audiobookshelf:*:*:*:*:*:*:*:*

More vulnerabilities in Audiobookshelf

CVE-2025-57800 — High (CVSS 8.8): Audiobookshelf is an open-source self-hosted audiobook server. In versions 2.6.0 through 2.26.3, the application does…
CVE-2025-25205 — High (CVSS 8.2): Audiobookshelf is a self-hosted audiobook and podcast server. Starting in version 2.17.0 and prior to version 2.19.1, a…
CVE-2023-47619 — High (CVSS 8.1): Audiobookshelf is a self-hosted audiobook and podcast server. In versions 2.4.3 and prior, users with the update…
CVE-2023-47624 — High (CVSS 7.5): Audiobookshelf is a self-hosted audiobook and podcast server. In versions 2.4.3 and prior, any user (regardless of…
CVE-2024-43797 — Medium (CVSS 6.3): audiobookshelf is a self-hosted audiobook and podcast server. A non-admin user is not allowed to create libraries (or…
CVE-2025-46338 — Medium (CVSS 6.1): Audiobookshelf is a self-hosted audiobook and podcast server. Prior to version 2.21.0, an improper input handling…

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