SEPTEMBER 13, 2026
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Case File

CVE-2026-78159

CRITICAL · CVSS 9.8 EPSS 0.76% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-12 · Last synced 2026-09-13

CyberRota Analysis

AI-Generated

The Events Calendar plugin for WordPress is vulnerable to Remote Code Execution due to insufficient validation in the parse_array function, affecting all versions up to 6.17.3. This flaw allows unauthenticated attackers to execute arbitrary code on the server if comments are enabled on tribe_events posts and a specially crafted comment has been submitted. WordPress site administrators using this plugin should prioritize immediate patching to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit remote code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-78159
Severity
CRITICAL
CVSS
9.8
EPSS
0.76%
WordPress

Original NVD 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.