High severity · published Jul 1, 2026
CVE-2026-12158
RegistrationMagic <= 6.0.9.1 - Cross-Site Request Forgery to Privilege Escalation via 'rmc_assign_user_role_action' Parameter
8.8
CVSS
0.3%
EPSS
No
On KEV
Description
The RegistrationMagic – User Registration Forms Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 6.0.9.1. This is due to missing or incorrect nonce validation on the process_request function. This makes it possible for unauthenticated attackers to escalate the privileges of an arbitrary form submitter to administrator by creating a malicious Chronos automation task that is executed via WordPress cron via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 25% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RC
RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login · metagauss
through 6.0.9.1 · source: vendor
Affected product
RC
RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login
metagauss
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-12158
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-12158
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/custom-registration-form-builder-with-submission-manager/tags/6.0.8.9/plus/chronos/controllers/task_controller.php#L63
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/custom-registration-form-builder-with-submission-manager/tags/6.0.8.9/plus/chronos/libs/rm_chronos.php#L277
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/custom-registration-form-builder-with-submission-manager/tags/6.0.8.9/plus/chronos/libs/task.php#L176
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/custom-registration-form-builder-with-submission-manager/tags/6.0.8.9/plus/chronos/services/service.php#L43
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3579552%40custom-registration-form-builder-with-submission-manager&new=3579552%40custom-registration-form-builder-with-submission-manager&sfp_email=&sfph_mail=#file8
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/ef7aff85-e1ca-47ce-86e9-a0fe356993a1?source=cve
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