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THREAT OPS › Threat News › [NVD] CVE-2026-78159 (CRITICAL 9.8) — 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_

[NVD] CVE-2026-78159 (CRITICAL 9.8) — 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_

mednvdPublished 2026-09-12

CVE-2026-78159 CVSS: 9.8 CRITICAL Published: 2026-09-12T08:16:24.377

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 calla

Indicators of compromise

CVE-2026-78159cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-78159