How severe is CVE-2022-3993?

CVE-2022-3993 has a CVSS 3.x base score of 9.4, 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 low, and availability high.

Is CVE-2022-3993 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-3993?

CVE-2022-3993 affects Kavitareader Kavita. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-3993?

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-2022-3993 published?

CVE-2022-3993 was published on 2022-11-14 and last updated on 2026-06-17.

CVE-2022-3993

CVE-2022-3993 is a critical-severity vulnerability in Kavitareader Kavita with a CVSS 3.x base score of 9.4. 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-307.

Key facts

Severity: Critical (CVSS 3.x base score 9.4)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-307
Affected product: Kavitareader Kavita
Published: 2022-11-14
Last modified: 2026-06-17

Description

Improper Restriction of Excessive Authentication Attempts in GitHub repository kareadita/kavita prior to 0.6.0.3.

Frequently asked questions

What is CVE-2022-3993?: Improper Restriction of Excessive Authentication Attempts in GitHub repository kareadita/kavita prior to 0.6.0.3.
How severe is CVE-2022-3993?: CVE-2022-3993 has a CVSS 3.x base score of 9.4, 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 low, and availability high.
Is CVE-2022-3993 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-3993?: CVE-2022-3993 affects Kavitareader Kavita. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-3993?: 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-2022-3993 published?: CVE-2022-3993 was published on 2022-11-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:kavitareader:kavita:*:*:*:*:*:*:*:*

More vulnerabilities in Kavitareader Kavita

CVE-2023-0919 — High (CVSS 8.1): Missing Authentication for Critical Function in GitHub repository kareadita/kavita prior to 0.7.0.
CVE-2022-2756 — Medium (CVSS 6.5): Server-Side Request Forgery (SSRF) in GitHub repository kareadita/kavita prior to 0.5.4.1.
CVE-2022-3945 — Medium (CVSS 5.3): Improper Restriction of Excessive Authentication Attempts in GitHub repository kareadita/kavita prior to 0.6.0.3.

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