WordPress Google Calendar Events plugin <= 3.5.9 - Insecure Direct Object References (IDOR) vulnerability

published 2025-12-30 10 mo ago modified 2026-10-07 32 d ago also EUVD-2025-205756

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 22%
public exploits: 0; none known

Authorization Bypass Through User-Controlled Key vulnerability in SimpleCalendar Google Calendar Events google-calendar-events allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Google Calendar Events: from n/a through <= 3.5.9.

Patch / fix

fixed in 1

SimpleCalendar Google Calendar Events 3.6.0

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 6 mo ago (2026-04-27)

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected products

SimpleCalendar Google Calendar Events

Classification

Weakness

CWE-639 Authorization Bypass Through User-Controlled Key

Technology feeds

WordPress rss critical rss

References

patchstack.com /database/Wordpress/Plugin/google-calendar-events/vulnerability/wordpress-google-calendar-events-plugin-3-5-9-
vdb-entry

Sources

CVE List CVE-2025-68979
NVD CVE-2025-68979

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary