{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-5809",
        "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "state": "PUBLISHED",
        "assignerShortName": "Wordfence",
        "dateReserved": "2026-04-08T15:01:41.066Z",
        "datePublished": "2026-04-11T07:40:15.574Z",
        "dateUpdated": "2026-04-13T15:15:07.646Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
                "shortName": "Wordfence",
                "dateUpdated": "2026-04-11T07:40:15.574Z"
            },
            "affected": [
                {
                    "vendor": "tomdever",
                    "product": "wpForo Forum",
                    "versions": [
                        {
                            "version": "0",
                            "status": "affected",
                            "lessThanOrEqual": "3.0.2",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "The wpForo Forum plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to and including 3.0.2. This is due to a two-step logic flaw: the topic_add() and topic_edit() action handlers accept arbitrary user-supplied data[*] arrays from $_REQUEST and store them as postmeta without restricting which fields may contain array values. Because 'body' is included in the allowed topic fields list, an attacker can supply data[body][fileurl] with an arbitrary file path (e.g., wp-config.php or an absolute server path). This poisoned fileurl is persisted to the plugin's custom postmeta database table. Subsequently, when the attacker submits wpftcf_delete[]=body on a topic_edit request, the add_file() method retrieves the stored postmeta record, extracts the attacker-controlled fileurl, passes it through wpforo_fix_upload_dir() which only rewrites legitimate wpforo upload paths and returns all other paths unchanged, and then calls wp_delete_file() on the unvalidated path. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary files writable by the PHP process on the server, including critical files such as wp-config."
                }
            ],
            "title": "wpForo Forum <= 3.0.2 - Authenticated (Subscriber+) Arbitrary File Deletion via 'data[body][fileurl]' Parameter",
            "references": [
                {
                    "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/0e46ac8d-89ee-4480-bb96-83f2044a4323?source=cve"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/changeset/3503313/wpforo"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wpforo/tags/3.0.2/classes/Actions.php#L746"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wpforo/tags/3.0.2/classes/Actions.php#L761"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wpforo/tags/3.0.2/classes/Posts.php#L1961"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wpforo/tags/3.0.2/classes/PostMeta.php#L523"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wpforo/tags/3.0.2/classes/PostMeta.php#L421"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wpforo/tags/3.0.2/classes/PostMeta.php#L402"
                },
                {
                    "url": "https://plugins.trac.wordpress.org/browser/wpforo/tags/3.0.2/includes/functions.php#L2641"
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "description": "CWE-73 External Control of File Name or Path",
                            "cweId": "CWE-73",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H",
                        "baseScore": 7.1,
                        "baseSeverity": "HIGH"
                    }
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Leonid Semenenko"
                }
            ],
            "timeline": [
                {
                    "time": "2026-04-08T15:17:23.000Z",
                    "lang": "en",
                    "value": "Vendor Notified"
                },
                {
                    "time": "2026-04-10T18:51:03.000Z",
                    "lang": "en",
                    "value": "Disclosed"
                }
            ]
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2026-5809",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2026-04-13T15:11:05.851805Z"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-04-13T15:15:07.646Z"
                }
            }
        ]
    }
}