Event Calendar <= 1.4.6 - Missing Authorization to Event Modification
Strategic Overview
- Status
- Patched in 1.4.7
- Affected Plugin
- Event Calendar – Calendar
- Affected Version
<= 1.4.6- CVSS
- 6.5Medium
- Weakness type
- CWE-862 · Missing Authorization
- CVE
CVE-2022-38067
At a glance
CVE-2022-38067 is a medium-severity Missing Authorization vulnerability in the Event Calendar WordPress plugin, affecting versions <= 1.4.6. It carries a CVSS score of 6.5 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 1.4.7; sites on affected versions should update now. Disclosed August 2022, reported by Nguy Minh Tuan.
Vulnerability Overview
The Event Calendar plugin for WordPress lacks authorization and capability checks on several of its functions reachable via AJAX actions in versions up to, and including, 1.4.6. This makes it possible for unauthenticated attackers to edit, clone, and delete events.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site, and no interaction from a victim user.
CWE-862: Missing Authorization
Reaching this weakness in Event Calendar <= 1.4.6 takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.
Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Event Calendar the fix is 1.4.7: builds <= 1.4.6 are affected, anything from 1.4.7 onward is not.
Remediation
Update to version 1.4.7, or a newer patched version
How does WordSec protect against this?
Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Event Calendar 1.4.7 closes this, and updating the plugin is the step that ends it.
- Login Security
- Alerts
External References
Related records
Other vulnerabilities in Event Calendar – Calendar
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