CVE Feed

    Dashboard / CVE / CVE-2016-9838

    CVE-2016-9838

    An issue was discovered in components/com_users/models/registration.php in Joomla! before 3.6.5. Incorrect filtering of registration form data stored to the session on a validation error enables a user to gain access to a registered user's account and reset the user's group mappings, username, and password, as demonstrated by submitting a form that targets the `registration.register` task.

    Published:Dec 16, 2016
    Last Modified:Apr 12, 2025
    EPS:Dec 16, 2016
    EPSS Score:0.02871
    CVSS Score:7.5

    Affected Products

    Vendor
    Joomla
    Product
    Joomla\!

    Exploits

    https://www.exploit-db.com/exploits/41157https://github.com/cved-sources/cve-2016-9838

    Common Weakness Enumeration

    CWE-284 Improper Access Control

    Related CVEs

    CVE-2026-71573 (CVSS 6.9) — Joomla! Core - [20260802] - Improper CORS origin validation in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An improper i…
    CVE-2026-72531 (CVSS 5.1) — Joomla! Core - [20260804] - Improper ACL checks for custom fields webservice endpoints in Joomla 4.0.0-5.4.7, …
    CVE-2026-73336 (CVSS 5.1) — Joomla! Core - [20260806] - XSS through schema.org outputs in Joomla 5.1.0-5.4.7, 6.0.0-6.1.2 - Improper escap…
    CVE-2026-73372 (CVSS 5.1) — Joomla! Core - [20260809] - Improper ACL checks when injection schema.org contact data in Joomla 5.1.0-5.4.7 a…
    CVE-2026-71572 (CVSS 4.8) — Joomla! Core - [20260801] - Response header injection in download views in Joomla 3.0.0-5.4.7, 6.0.0-6.1.2 - L…
    CVE-2026-73337 (CVSS 8.2) — Joomla! Core - [20260807] - MFA Authentication Bypass in Joomla 4.0.0-5.4.7 and 6.0.0-6.1.2 - Insufficient sta…
    CVE-2026-73371 (CVSS 5.1) — Joomla! Core - [20260808] - Improper ACL checks for batch copy actions in Joomla 4.0.0-5.4.7, 6.0.0-6.1.2 - An…
    CVE-2026-72532 (CVSS 5.1) — Joomla! Core - [20260806] - Improper ACL checks for category webservice endpoints in Joomla 4.0.0-5.4.7, 6.0.0…
    CVE-2026-73373 (CVSS 8.9) — Joomla! Core - [20260810] - Unrestricted uploads of SHTML files in Joomla 1.0.0-5.4.7, 6.0.0-6.1.2 - The defau…
    CVE-2026-71574 (CVSS 8.5) — Joomla! Core - [20260803] - Inconsistent ACL checks for mutating webservice endpoints in Joomla 4.0.0-5.4.7, 6…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High