# Events Made Easy <= 3.3.2 - Unauthenticated Reflected Cross-Site Scripting via Event List Filter Parameters

- **ID:** WPSEC-2026-2263
- **Plugin:** Events Made Easy (`events-made-easy`), https://wordpress.org/plugins/events-made-easy/
- **Affected versions:** all versions before 3.3.3
- **Fixed in:** 3.3.3 (Update to 3.3.3 or later.)
- **Severity:** Medium 6.1 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)
- **Weakness:** CWE-79
- **Usage among sites WPSec scans:** plugin Low, affected versions Low (as of 2026-11-03)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/events-made-easy
- **Fix released:** 2026-10-30
- **Published:** 2026-11-03
- **URL:** https://wpsec.com/vuln/WPSEC-2026-2263/

## Description

The Events Made Easy plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the event list filter parameters (such as 'eme_city_filter', 'eme_cat_filter' or 'eme_scope_filter') in all versions up to, and including, 3.3.2, due to insufficient output escaping. On paged event lists the filter values are only passed through sanitize_text_field, which keeps quotes, then added to the previous and next page links with add_query_arg, which does not encode them, and printed into single-quoted href attributes without esc_url(). This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

## References

- https://wpsec.com/vuln/WPSEC-2026-2263/
- https://plugins.svn.wordpress.org/events-made-easy/tags/3.3.3/
- https://wordpress.org/plugins/events-made-easy/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-2263/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.