How severe is CVE-2026-28503?

CVE-2026-28503 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-28503 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-28503?

CVE-2026-28503 affects Tandoor Recipes. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-28503?

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

Does CVE-2026-28503 have an EU (EUVD) identifier?

Yes. CVE-2026-28503 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16295.

When was CVE-2026-28503 published?

CVE-2026-28503 was published on 2026-03-26 and last updated on 2026-06-17.

CVE-2026-28503

CVE-2026-28503 is a medium-severity vulnerability in Tandoor Recipes with a CVSS 3.x base score of 6.5. 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-639.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 5.5
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-16295
Weakness: CWE-639
Affected product: Tandoor Recipes
Published: 2026-03-26
Last modified: 2026-06-17

Description

Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. In versions prior to 2.6.0, the `SyncViewSet.query_synced_folder()` action in `cookbook/views/api.py` (line 903) fetches a Sync object using `get_object_or_404(Sync, pk=pk)` without including `space=request.space` in the filter. This allows an admin user in Space A to trigger sync operations (Dropbox/Nextcloud/Local import) on Sync configurations belonging to Space B, and view the resulting sync logs. Version 2.6.0 patches the issue.

Frequently asked questions

What is CVE-2026-28503?: Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. In versions prior to 2.6.0, the `SyncViewSet.query_synced_folder()` action in `cookbook/views/api.py` (line 903) fetches a Sync object using `get_object_or_404(Sync, pk=pk)` without including `space=request.space` in the filter. This allows an admin user in Space A to trigger sync operations (Dropbox/Nextcloud/Local import) on Sync configurations belonging to Space B, and view the resulting sync logs. Version 2.6.0 patches the issue.
How severe is CVE-2026-28503?: CVE-2026-28503 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-28503 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-28503?: CVE-2026-28503 affects Tandoor Recipes. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-28503?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-28503 have an EU (EUVD) identifier?: Yes. CVE-2026-28503 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-16295.
When was CVE-2026-28503 published?: CVE-2026-28503 was published on 2026-03-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tandoor:recipes:*:*:*:*:*:*:*:*

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