Google Calendar Events <= 3.2.5 - Cross-Site Request Forgery via bulk_actions
Strategic Overview
- Status
- Patched in 3.2.6
- Affected Plugin
- Simple Calendar – Google Calendar Plugin
- Affected Version
<= 3.2.5- CVSS
- 4.3Medium
- Weakness type
- CWE-352 · Cross-Site Request Forgery (CSRF)
- CVE
CVE-2023-46189
At a glance
CVE-2023-46189 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Simple Calendar WordPress plugin, affecting versions <= 3.2.5. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 3.2.6; sites on affected versions should update now. Disclosed October 2023, reported by Nguyen Xuan Chien.
Vulnerability Overview
The Google Calendar Events plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.2.5. This is due to missing nonce validation on the 'bulk_actions' function. This makes it possible for unauthenticated attackers to perform bulk actions via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
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.
CWE-352: Cross-Site Request Forgery (CSRF)
Simple Calendar <= 3.2.5 carries this weakness at bulk_actions, and reaching it takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.
An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Simple Calendar the fix is 3.2.6: builds <= 3.2.5 are affected, anything from 3.2.6 onward is not.
Remediation
Update to version 3.2.6, or a newer patched version
How does WordSec protect against this?
The attempt arrives as an ordinary request to Simple Calendar: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Simple Calendar 3.2.6 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in Simple Calendar – Google Calendar Plugin
- 6.4CVE-2023-49151: Google Calendar Events <= 3.2.7 Stored XSS
CVE-2023-49151 - 6.1CVE-2024-8549: Simple Calendar – Google Calendar Plugin Reflected XSS
CVE-2024-8549 - 6.1CVE-2014-7138: Simple Calendar – Google Calendar Plugin Reflected XSS
CVE-2014-7138 - 5.3CVE-2025-68979: Google Calendar Events <= 3.5.9 IDOR
CVE-2025-68979
Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C