How severe is CVE-2026-30345?

CVE-2026-30345 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-30345 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-30345?

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.

Does CVE-2026-30345 have an EU (EUVD) identifier?

Yes. CVE-2026-30345 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12868.

When was CVE-2026-30345 published?

CVE-2026-30345 was published on 2026-03-18 and last updated on 2026-06-17.

CVE-2026-30345

CVE-2026-30345 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. 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-23.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12868
Weakness: CWE-23
Published: 2026-03-18
Last modified: 2026-06-17

Description

A zip slip vulnerability in the Admin import functionality of CTFd v3.8.1-18-gdb5a18c4 allows attackers to write arbitrary files outside the intended directories via supplying a crafted import.

Frequently asked questions

What is CVE-2026-30345?: A zip slip vulnerability in the Admin import functionality of CTFd v3.8.1-18-gdb5a18c4 allows attackers to write arbitrary files outside the intended directories via supplying a crafted import.
How severe is CVE-2026-30345?: CVE-2026-30345 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-30345 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-30345?: 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.
Does CVE-2026-30345 have an EU (EUVD) identifier?: Yes. CVE-2026-30345 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12868.
When was CVE-2026-30345 published?: CVE-2026-30345 was published on 2026-03-18 and last updated on 2026-06-17.

References

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