How severe is CVE-2026-33312?

CVE-2026-33312 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2026-33312 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-2026-33312?

CVE-2026-33312 affects Vikunja. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33312?

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

Does CVE-2026-33312 have an EU (EUVD) identifier?

Yes. CVE-2026-33312 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13708.

When was CVE-2026-33312 published?

CVE-2026-33312 was published on 2026-03-20 and last updated on 2026-06-17.

CVE-2026-33312

CVE-2026-33312 is a medium-severity vulnerability in Vikunja with a CVSS 3.x base score of 5.4. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v4: 5.3
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-13708
Weakness: CWE-863
Affected product: Vikunja
Published: 2026-03-20
Last modified: 2026-06-17

Description

Vikunja is an open-source self-hosted task management platform. Starting in version 0.20.2 and prior to version 2.2.0, the `DELETE /api/v1/projects/:project/background` endpoint checks `CanRead` permission instead of `CanUpdate`, allowing any user with read-only access to a project to permanently delete its background image. Version 2.2.0 fixes the issue.

Frequently asked questions

What is CVE-2026-33312?: Vikunja is an open-source self-hosted task management platform. Starting in version 0.20.2 and prior to version 2.2.0, the `DELETE /api/v1/projects/:project/background` endpoint checks `CanRead` permission instead of `CanUpdate`, allowing any user with read-only access to a project to permanently delete its background image. Version 2.2.0 fixes the issue.
How severe is CVE-2026-33312?: CVE-2026-33312 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2026-33312 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-2026-33312?: CVE-2026-33312 affects Vikunja. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33312?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-33312 have an EU (EUVD) identifier?: Yes. CVE-2026-33312 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13708.
When was CVE-2026-33312 published?: CVE-2026-33312 was published on 2026-03-20 and last updated on 2026-06-17.

References

Affected products (1)

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

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