CVE-2026-119164 Escalada de privilegios autenticada en wpForo Forum vía 'data[secondary_groupids]'
El plugin wpForo Forum para WordPress es vulnerable a escalada de privilegios en versiones hasta la 3.2.2 inclusive mediante el parámetro data[secondary_groupids] del handler POST wpforo_action_profile_update, por un fallo de confusión de tipos en la validación de Members::update() en classes/Members.php. Permite a atacantes autenticados con nivel Subscriber persistir IDs de grupo arbitrarios en wp_wpforo_profiles.secondary_groupids.
CVSS 3.1
- Probabilidad de explotación · EPSS del 09/110,4 % · percentil 32
- Explotada activamenteNo confirmada
- Exploit públicoNo conocido
Afectados
tomdever wpForo Forum
hasta 3.2.2
Qué hacer
- Verificá si usás wpForo Forum y en qué versión.
- Actualizá a la versión corregida que indique el fabricante en su aviso o aplicá su mitigación.
- Revisá registros y accesos de los sistemas expuestos para descartar un uso previo.
Calculadora CVSS
CVSS 3.1 · 7.5 ALTA
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Vector de ataqueRed
- Complejidad del ataqueAlta
- Privilegios requeridosBajos
- Interacción del usuarioNinguna
- AlcanceSin cambio
- ConfidencialidadAlta
- IntegridadAlta
- DisponibilidadAlta
Descripción original
The wpForo Forum plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.2.2 via the `data[secondary_groupids]` parameter of the `wpforo_action_profile_update` POST handler. This is due to a type-confusion flaw in the secondary_groupids authorization guard within the `Members::update()` function in `classes/Members.php`, where casting a scalar CSV string (e.g. `"0,1"`) with `(array)` before `array_map('intval', …)` and `array_filter()` produces an empty array — causing the guard's outer conditional, and the else-branch that would otherwise strip the field from the update, to be bypassed entirely — while `encode()`/`decode()` downstream correctly explodes the original CSV and persists the attacker-supplied group IDs to `wp_wpforo_profiles.secondary_groupids`. This makes it possible for authenticated attackers, with Subscriber-level access and above, to escalate their forum privileges to wpForo Administrator by injecting the privileged Admin group ID, granting access to the Forum Accesses editor and the ability to rewrite forum-wide capability policies for all members and edit arbitrary content owned by other users. Exploitation requires the attacker to have at least 3 approved wpForo posts to satisfy the plugin's default `min_number_posts_to_edit_account` antispam gate, along with a valid wpforo nonce obtained from their own account profile form.
Referencias (7)
- www.wordfence.com/threat-intel/vulnerabilities/id/8ef7232d-4acd-4db2-bfd0-d8e44bd59c19?so…
- plugins.trac.wordpress.org/browser/wpforo/tags/3.2.2/classes/Members.php#L840
- plugins.trac.wordpress.org/browser/wpforo/tags/3.2.2/classes/Members.php#L1071
- plugins.trac.wordpress.org/browser/wpforo/tags/3.2.2/classes/Actions.php#L724
- plugins.trac.wordpress.org/browser/wpforo/tags/3.2.2/classes/Members.php#L731
- wordpress.org/plugins/wpforo/#developers
- plugins.trac.wordpress.org/changeset?reponame=&new=3778162%40wpforo%2Ftags%2F3.2.3&old=37…
Resumen traducido automáticamente de la descripción original. Fuente: Nureq Monitor. Cómo funciona.