{"cvss":9.8,"datePublished":"2026-09-14T00:00:00Z","dateUpdated":"2026-09-14T00:00:00Z","description":"The The Events Calendar plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 6.17.3 via the parse_array function. This is due to insufficient validation of the widget 'classes' map, allowing a plain-array payload to bypass the is_safe_widget_instance() object check and reach the callable-invocation sink in Element_Classes::parse_array(). This makes it possible for unauthenticated attackers to execute code on the server. Exploitation requires that the targeted site has comments enabled on tribe_events posts and that at least one comment containing a crafted wp:legacy-widget block has been submitted, as the attack chain is triggered when do_blocks() processes the single-event HTML including the comment area.","dueDate":"","id":"CVE-2026-78159","kev_catalogs":["vulncheck"],"knownRansomwareCampaignUse":"Unknown","product":"the_events_calendar","requiredAction":"Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.","severity":"CRITICAL","source":"vulncheck_kev","title":"StellarWP the_events_calendar Improper Control of Generation of Code","vendor":"StellarWP"}