Contributor content publication via missing capability check
Published Sep 23, 2026 · Updated Sep 23, 2026
Missing authorization in The Events Calendar 6.15.0 through 6.17.4.1 allows remote authenticated users to publish events through REST API v1. The REST API v1 create and update handlers fail to verify the WordPress capability required to publish before assigning published status to event content. Contributor-level access is sufficient to bypass editorial review and create or update publicly visible events.
Summary
What happened
Missing authorization in The Events Calendar 6.15.0 through 6.17.4.1 allows remote authenticated users to publish events through REST API v1. The REST API v1 create and update handlers fail to verify the WordPress capability required to publish before assigning published status to event content. Contributor-level access is sufficient to bypass editorial review and create or update publicly visible events.
The record
- CVE
- CVE-2026-84742
- Published
- Sep 23, 2026
- Updated
- Sep 23, 2026
- Vendor
- Liquid Web
- Product
- The Events Calendar
- Classifications
- T1565.001
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Sep 23, 2026CVE publishedPublication date reported by the CVE source.
- Sep 23, 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.
- Affected versionversion=6.15.0 <6.17.5
What conditions does exploitation require?
What is affected?
Published CVSS scores
No CVSS assessment is available in this record.
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.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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