CVE-2026-1321: fallo de gravedad alta en stellarwp Membership Plugin – Restrict Content
Membership Plugin – Restrict Content <= 3.2.20 - Unauthenticated Privilege Escalation via 'rcp_level'
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 8.1epss 0.4%
The Membership Plugin – Restrict Content plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 3.2.20. This is due to the `rcp_setup_registration_init()` function accepting any membership level ID via the `rcp_level` POST parameter without validating that the level is active or that payment is required. Combined with the `add_user_role()` method which assigns the WordPress role configured on the membership level without status checks, this makes it possible for unauthenticated attackers to register with any membership level, including inactive levels that grant privileged WordPress roles such as Administrator, or paid levels that charge a sign-up fee. The vulnerability was partially patched in version 3.2.18.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Productos afectados
stellarwp · Membership Plugin – Restrict ContentCVEs relacionadas — stellarwp Membership Plugin – Restrict Content
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CVE-2024-11090MEDIUMMembership Plugin – Restrict Content <= 3.2.13 - Unauthenticated Content Restriction Bypass to Sensitive Information ExposureEPSS 0.5%CVE-2025-14844HIGHMembership Plugin – Restrict Content <= 3.2.16 - Missing Authentication to Insecure Direct Object Reference and Sensitive Information ExposureEPSS 0.5%CVE-2026-1304MEDIUMMembership Plugin – Restrict Content <= 3.2.18 - Authenticated (Administrator+) Stored Cross-Site Scripting via Invoice SettingsEPSS 0.4%CVE-2025-14000MEDIUMMembership Plugin – Restrict Content <= 3.2.15 - Authenticated (Contributor+) Stored Cross-Site Scripting via ShortcodesEPSS 0.2%CVE-2026-4136MEDIUMMembership Plugin – Restrict Content <= 3.2.24 - Unvalidated Redirect in Password Reset Flow via rcp_redirectEPSS 0.2%
Referencias
https://plugins.trac.wordpress.org/browser/restrict-content/tags/3.2.15/core/includes/class-rcp-registration.php#L107https://plugins.trac.wordpress.org/browser/restrict-content/tags/3.2.15/core/includes/memberships/class-rcp-membership.php#L1939https://plugins.trac.wordpress.org/browser/restrict-content/tags/3.2.15/core/includes/registration-functions.php#L1191https://plugins.trac.wordpress.org/browser/restrict-content/tags/3.2.15/core/includes/registration-functions.php#L1203https://plugins.trac.wordpress.org/changeset/3447187/https://plugins.trac.wordpress.org/changeset/3460177/https://www.wordfence.com/threat-intel/vulnerabilities/id/abfaa4a6-92b0-4233-b08d-e668090d3fc2?source=cve