How severe is CVE-2024-39307?

CVE-2024-39307 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2024-39307 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2024-39307?

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

Does CVE-2024-39307 have an EU (EUVD) identifier?

Yes. CVE-2024-39307 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-37893.

When was CVE-2024-39307 published?

CVE-2024-39307 was published on 2024-06-28 and last updated on 2026-06-17.

CVE-2024-39307

CVE-2024-39307 is a low-severity vulnerability with a CVSS 3.x base score of 3.5. 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-79.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
EPSS exploit prediction: 0% (37th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-37893
Weakness: CWE-79
Published: 2024-06-28
Last modified: 2026-06-17

Description

Kavita is a cross platform reading server. Opening an ebook with malicious scripts inside leads to code execution inside the browsing context. Kavita doesn't sanitize or sandbox the contents of epubs, allowing scripts inside ebooks to execute. This vulnerability was patched in version 0.8.1.

Frequently asked questions

What is CVE-2024-39307?: Kavita is a cross platform reading server. Opening an ebook with malicious scripts inside leads to code execution inside the browsing context. Kavita doesn't sanitize or sandbox the contents of epubs, allowing scripts inside ebooks to execute. This vulnerability was patched in version 0.8.1.
How severe is CVE-2024-39307?: CVE-2024-39307 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2024-39307 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (37th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2024-39307?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-39307 have an EU (EUVD) identifier?: Yes. CVE-2024-39307 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-37893.
When was CVE-2024-39307 published?: CVE-2024-39307 was published on 2024-06-28 and last updated on 2026-06-17.

References

https://github.com/Kareadita/Kavita/security/advisories/GHSA-r4qc-3w52-2v84

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