CVE-2026-2387

MEDIUM 6.4

Event Organiser <= 3.12.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via eo_events Shortcode

CVSS Score

6.4

EPSS Score

0.0%

EPSS Percentile

0th

The Event Organiser plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 3.12.9. This is due to the 'eo_events' shortcode accepting attacker-controlled 'no_events' content and rendering it in event list templates without output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

CWE	CWE-79
Vendor	stephenharris
Product	event organiser
Published	Jul 1, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

stephenharris / Event Organiser

0 ≤ 3.12.9

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/3f417afd-2822-412f-b68a-f09c013d6049?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3589132/event-organiser

Credits

Muhammad Yudha - DJ