Subscriber event creation via unchecked AJAX authorization
Published Jan 17, 2022 · Updated Aug 3, 2024
Missing authorization in Event Calendar WD before 1.1.51 allows remote authenticated users to create events through WordPress AJAX. The add_calendar_event AJAX actions lack authorization and CSRF checks, so a subscriber-level account can submit crafted requests that create calendar events. Exploitation requires a logged-in WordPress session, and the demonstrated consequence is unauthorized event creation affecting data integrity without reported confidentiality or availability impact.
Summary
What happened
Missing authorization in Event Calendar WD before 1.1.51 allows remote authenticated users to create events through WordPress AJAX. The add_calendar_event AJAX actions lack authorization and CSRF checks, so a subscriber-level account can submit crafted requests that create calendar events. Exploitation requires a logged-in WordPress session, and the demonstrated consequence is unauthorized event creation affecting data integrity without reported confidentiality or availability impact.
The record
- CVE
- CVE-2021-25025
- Published
- Jan 17, 2022
- Updated
- Aug 3, 2024
- Vendor
- WebDorado
- Product
- Event Calendar WD
- Classifications
- CWE-862, CWE-352
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 17, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record 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=1.1.51 <1.1.51
What conditions does exploitation require?
What is affected?
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.
Public exploit references
- Event Calendar add_calendar_event event-creation proof of conceptproof of concept · unverified
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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