CVE-2026-30945Public exploitNetwork attack vector

Integration denial via unchecked API token revocation

Published Mar 10, 2026 · Updated Mar 10, 2026

Incorrect authorization in StudioCMS before 0.4.0 allows remote authenticated users to revoke API tokens belonging to other users. The dashboard API-token DELETE handler passes request-supplied tokenID and userID values to the deletion operation without checking ownership, caller identity, or role hierarchy. Editor privileges are sufficient to invalidate tokens owned by administrators or owners, interrupting integrations and automated workflows that depend on them.

CVSS severity7.1
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in StudioCMS before 0.4.0 allows remote authenticated users to revoke API tokens belonging to other users. The dashboard API-token DELETE handler passes request-supplied tokenID and userID values to the deletion operation without checking ownership, caller identity, or role hierarchy. Editor privileges are sufficient to invalidate tokens owned by administrators or owners, interrupting integrations and automated workflows that depend on them.

The record

CVE
CVE-2026-30945
Published
Mar 10, 2026
Updated
Mar 10, 2026
Vendor
withStudioCMS
Product
StudioCMS
Classifications
CWE-863, CWE-639, T1531
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

withStudioCMS · StudioCMSversion=< 0.4.0

Published CVSS scores

7.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-863Incorrect Authorization
CWE-639Authorization Bypass Through User-Controlled Key
T1531Account Access Removal

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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