PT-2026-54476 · Stephen Harris · Event Organiser

Published 2026-07-01 · Updated 2026-07-01 · CVE-2026-2387

Mitre

CVSS v3.1

6.4

Medium

Base vector

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

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.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-2387

Affected Products

Event Organiser

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-2387 · Security Note
• https://plugins.trac.wordpress.org/changeset/3589132/event-organiser · Note
• https://wordfence.com/threat-intel/vulnerabilities/id/3f417afd-2822-412f-b68a-f09c013d6049?source=cve · Note