How severe is CVE-2026-32638?

CVE-2026-32638 has a CVSS 3.x base score of 2.7, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-32638 being actively exploited?

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

What products are affected by CVE-2026-32638?

CVE-2026-32638 affects Studiocms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-32638?

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

Does CVE-2026-32638 have an EU (EUVD) identifier?

Yes. CVE-2026-32638 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12964.

When was CVE-2026-32638 published?

CVE-2026-32638 was published on 2026-03-18 and last updated on 2026-06-17.

CVE-2026-32638

CVE-2026-32638 is a low-severity vulnerability in Studiocms with a CVSS 3.x base score of 2.7. 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: Low (CVSS 3.x base score 2.7)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12964
Weakness: CWE-639
Affected product: Studiocms
Published: 2026-03-18
Last modified: 2026-06-17

Description

StudioCMS is a server-side-rendered, Astro native, headless content management system. Prior to 0.4.4, the REST API `getUsers` endpoint in StudioCMS uses the attacker-controlled `rank` query parameter to decide whether owner accounts should be filtered from the result set. As a result, an admin token can request `rank=owner` and receive owner account records, including IDs, usernames, display names, and email addresses, even though the adjacent `getUser` endpoint correctly blocks admins from viewing owner users. This is an authorization inconsistency inside the same user-management surface. Version 0.4.4 fixes the issue.

Frequently asked questions

What is CVE-2026-32638?: StudioCMS is a server-side-rendered, Astro native, headless content management system. Prior to 0.4.4, the REST API `getUsers` endpoint in StudioCMS uses the attacker-controlled `rank` query parameter to decide whether owner accounts should be filtered from the result set. As a result, an admin token can request `rank=owner` and receive owner account records, including IDs, usernames, display names, and email addresses, even though the adjacent `getUser` endpoint correctly blocks admins from viewing owner users. This is an authorization inconsistency inside the same user-management surface. Version 0.4.4 fixes the issue.
How severe is CVE-2026-32638?: CVE-2026-32638 has a CVSS 3.x base score of 2.7, rated low severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-32638 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-32638?: CVE-2026-32638 affects Studiocms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-32638?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-32638 have an EU (EUVD) identifier?: Yes. CVE-2026-32638 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12964.
When was CVE-2026-32638 published?: CVE-2026-32638 was published on 2026-03-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:studiocms:studiocms:*:*:*:*:*:*:*:*

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