cve-2026-78159

{
  "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"
}