How severe is CVE-2026-33700?

CVE-2026-33700 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2026-33700 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33700?

CVE-2026-33700 affects Vikunja. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33700?

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

Does CVE-2026-33700 have an EU (EUVD) identifier?

Yes. CVE-2026-33700 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14927.

When was CVE-2026-33700 published?

CVE-2026-33700 was published on 2026-03-24 and last updated on 2026-06-17.

CVE-2026-33700

CVE-2026-33700 is a medium-severity vulnerability in Vikunja with a CVSS 3.x base score of 4.9. 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-639.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
CVSS v4: 6.9
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-14927
Weakness: CWE-639
Affected product: Vikunja
Published: 2026-03-24
Last modified: 2026-06-17

Description

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the `DELETE /api/v1/projects/:project/shares/:share` endpoint does not verify that the link share belongs to the project specified in the URL. An attacker with admin access to any project can delete link shares from other projects by providing their own project ID combined with the target share ID. Version 2.2.1 patches the issue.

Frequently asked questions

What is CVE-2026-33700?: Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the `DELETE /api/v1/projects/:project/shares/:share` endpoint does not verify that the link share belongs to the project specified in the URL. An attacker with admin access to any project can delete link shares from other projects by providing their own project ID combined with the target share ID. Version 2.2.1 patches the issue.
How severe is CVE-2026-33700?: CVE-2026-33700 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2026-33700 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33700?: CVE-2026-33700 affects Vikunja. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33700?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33700 have an EU (EUVD) identifier?: Yes. CVE-2026-33700 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14927.
When was CVE-2026-33700 published?: CVE-2026-33700 was published on 2026-03-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:*

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