Google Calendar Events <= 3.5.9 — Unauthenticated Insecure Direct Object Reference
CVE-2025-68979Published · Updated Action summary
Affected: ≤3.5.9Update to 3.6.0 or newer
All remediation steps- Severity
- Medium5.3
- CVSS
- 5.3CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:NPrivileges required- None
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:LIntegrity- Low
A:NAvailability- None
- Required access
- No account needed
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Simple Calendar – Google Calendar, Events, & ICS Feeds google-calendar-events
- Affected≤ 3.5.9
- Patched in3.6.0
Update to 3.6.0 or newer.
You are affected if you run ≤ 3.5.9. Version 3.6.0 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Simple Calendar – Google Calendar, Events, & ICS Feeds.
- No admin access? Run a passive check of your site. It reads public files only.
- No account is needed to exploit this. Treat any exposed site on an affected version as at risk.
What to do
- Update to version 3.6.0, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Simple Calendar – Google Calendar, Events, & ICS Feeds to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Doan Dinh Van (d52v).
The Simple Calendar – Google Calendar Plugin plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.5.9 due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to perform an unauthorized action.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Simple Calendar – Google Calendar, Events, & ICS Feeds
All 7| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.1 | Reflected Cross-Site Scripting ≤3.4.2Update to 3.4.3 | CVE-2024-8549 | |
| Medium6.4 | Authenticated (Contributor+) Stored Cross-Site Scripting via shortcode ≤3.2.7Update to 3.2.8 | CVE-2023-49151 | |
| Medium4.3 | Cross-Site Request Forgery via duplicate_feed <3.2.5Update to 3.2.5 | — | |
| Medium4.3 | Cross-Site Request Forgery via bulk_actions ≤3.2.5Update to 3.2.6 | CVE-2023-46189 | |
| Medium4.3 | Cross-Site Request Forgery to Transient Cache Clearing ≤3.1.42Update to 3.1.43 | — |
- Medium6.1Reflected Cross-Site Scripting
≤3.4.2Update to 3.4.3
- Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via shortcode
≤3.2.7Update to 3.2.8
- Medium4.3Cross-Site Request Forgery via duplicate_feed
<3.2.5Update to 3.2.5
- Medium4.3Cross-Site Request Forgery via bulk_actions
≤3.2.5Update to 3.2.6
- Medium4.3Cross-Site Request Forgery to Transient Cache Clearing
≤3.1.42Update to 3.1.43
Timeline
CVE published
Severity medium, CVSS 5.3
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.