CVE-2026-2355
Description
The My Calendar – Accessible Event Manager plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the template attribute of the [my_calendar_upcoming] shortcode in all versions up to, and including, 3.7.3. This is due to the use of stripcslashes() on user-supplied shortcode attribute values in the mc_draw_template() function, which decodes C-style hex escape sequences (e.g., \x3c to <) at render time, bypassing WordPress's wp_kses_post() content sanitization that runs at save time. 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.
Affected products
1- Range: <=3.7.3
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
6- plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.2/my-calendar-shortcodes.phpnvd
- plugins.trac.wordpress.org/browser/my-calendar/tags/3.7.2/my-calendar-templates.phpnvd
- plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-shortcodes.phpnvd
- plugins.trac.wordpress.org/browser/my-calendar/trunk/my-calendar-templates.phpnvd
- plugins.trac.wordpress.org/changesetnvd
- www.wordfence.com/threat-intel/vulnerabilities/id/03d5c82e-f82f-4156-bb3e-e6eb365a6c36nvd
News mentions
0No linked articles in our index yet.