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Event Organiser vulnerabilities

2 tracked advisories · slug event-organiser

Important: Event Organiser appearing in this catalog does not mean your website is affected. Exposure depends on your installed version. How SiteRespond intelligence works

Tracked advisories

2

Latest advisory

30 June 2026

CISA KEV matches

0

In this WordPress feed

WordPress slug

event-organiser

Plugin

What this means for Event Organiser

This catalog lists 2 known advisories affecting Event Organiser. The most recent was published on 30 June 2026. If you use this software, compare your installed version against the affected ranges on each advisory and update to a fixed release outside those ranges. SiteRespond Defence checks your actual installed version when the plugin is connected — listing here does not by itself mean your site is vulnerable.

Latest issues

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

    May allow attackers to run scripts in visitors' browsers or hijack admin sessions.

    Published 30 June 2026

  • Event Organiser <= 3.12.8 - Missing Authorization

    This advisory describes a other issue in the affected software. Review the source advisory and your installed version to assess exposure.

    Published 27 December 2025

Vulnerability types

  • Cross-site scripting1

Authentication (inferred from titles)

  • Unauthenticated0
  • Authenticated1
  • Unspecified1

Advisory history

Known Event Organiser advisories published by month.

All advisories

Check whether your installed version is affected

SiteRespond Defence matches your installed Event Organiser version against this catalog when the Defence plugin is connected to your WordPress site.

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