Is CVE-2016-8870 actively exploited?

CVE-2016-8870 has no public evidence of in-the-wild exploitation as of 2025-04-12.

What is the CVSS score for CVE-2016-8870?

CVE-2016-8870 has a CVSS score of 8.1 (HIGH severity). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2016-8870?

Patch guidance is available from joomla security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2016-8870.

Fix CVE-2016-8870 - HIGH joomla joomla\!

Description

The register method in the UsersModelRegistration class in controllers/user.php in the Users component in Joomla! before 3.6.4, when registration has been disabled, allows remote attackers to create user accounts by leveraging failure to check the Allow User Registration configuration setting.

CVSS Metrics

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: high
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-20 · Improper Input Validation

Metadata

Primary Vendor: JOOMLA
Published: 11/4/2016
Last Modified: 4/12/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2016-8870

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary