WordPress Plugin Vulnerabilities

The Events Calendar 6.12.0 - 6.17.5 - Unauthenticated Arbitrary Shortcode Execution via 'view_data' Parameter

Description

The plugin does not validate or sanitise data submitted to an unauthenticated AJAX action before merging it into its rendering context, allowing unauthenticated users to execute arbitrary shortcodes registered on the site.

Proof of Concept

Affects Plugins

Fixed in 6.17.5.1

References

Classification

Type
INJECTION
OWASP top 10

Miscellaneous

Original Researcher
Jakub Herman
Submitter
Jakub Herman
Submitter website
Verified
Yes

Timeline

Publicly Published
2026-09-28 (about 4 days ago)
Added
2026-09-28 (about 3 days ago)
Last Updated
2026-09-28 (about 3 days ago)

Other