What’s Vulnerable › Vulnerabilities

CVE-2026-1922: The Events Calendar Shortcode & Block <= 3.1.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode Attributes

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-10 · updated 2026-06-17
• Weakness: CWE-79

Description

The The Events Calendar Shortcode & Block plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `ecs-list-events` shortcode `message` attribute in all versions up to, and including, 3.1.2 due to insufficient input sanitization and output escaping on user supplied attributes. 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

• brianhogg The Events Calendar Shortcode & Block: through 3.1.2

References

• https://plugins.trac.wordpress.org/browser/the-events-calendar-shortcode/tags/3.1.1/the-events-calendar-shortcode.php#L486
• https://plugins.trac.wordpress.org/browser/the-events-calendar-shortcode/trunk/the-events-calendar-shortcode.php#L486
• https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3454586%40the-events-calendar-shortcode&old=3448663%40the-events-calendar-shortcode&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/bb302539-97e7-4b2c-865d-bd81919647ae?source=cve

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