CVE-2026-8681

Essential Chat Support <= 1.0.1 - Missing Authorization to Unauthenticated Settings Reset via 'ecs_reset_settings' Parameter

CVSS 5.3 MEDIUMEPSS 0.3%CWE-862

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.3EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

16 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

The Essential Chat Support plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.0.1. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to reset all plugin configuration settings — including general settings, display rules, custom CSS, and WooCommerce tab settings — to their defaults by sending a POST request with ecs_reset_settings=1.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

essentialplugin · Essential Chat Support

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References

https://plugins.trac.wordpress.org/browser/essential-chat-support/trunk/includes/admin/settings/register-settings.php#L47 https://plugins.trac.wordpress.org/browser/essential-chat-support/trunk/includes/ecs-functions.php#L33 https://www.wordfence.com/threat-intel/vulnerabilities/id/6b98ea22-4c82-45c6-8e29-75cc9a9185be?source=cve