🔐 CVE Alert

CVE-2026-78265

CRITICAL 9.8

WordPress The Events Calendar plugin <= 6.17.2 - PHP Object Injection vulnerability

CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th

Unauthenticated PHP Object Injection in The Events Calendar <= 6.17.2 versions.

CWE CWE-502
Vendor nexcess
Product the events calendar
Published Aug 24, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

Nexcess / The Events Calendar
n/a ≤ 6.17.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗
patchstack.com: https://patchstack.com/database/wordpress/plugin/the-events-calendar/vulnerability/wordpress-the-events-calendar-plugin-6-17-2-php-object-injection-vulnerability?_s_id=cve

Credits

Udin Chan | Patchstack Bug Bounty Program