Joomla\!Application · Joomla

CVE-2020-15695

MEDIUM · 6.3 CVSS v3.1 Published 2020-07-15
Fix available
A fix is available. Upgrade to after 3.9.19 or later.
See remediation →
70/100
Remediation priority · Elevated
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An issue was discovered in Joomla! through 3.9.19. A missing token check in the remove request section of com_privacy causes a CSRF vulnerability.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A Cross-Site Request Forgery (CSRF) vulnerability exists in Joomla! through version 3.9.19 in the com_privacy component's remove request functionality. The missing anti-CSRF token validation allows authenticated administrators to be tricked into unknowingly removing privacy requests via maliciously crafted links or forms, as the application fails to verify the request origin.

MitigationImplement proper CSRF token validation in the remove request action of com_privacy, or upgrade to Joomla 3.9.20 or later which includes the patched token check. All remove request forms and AJAX actions must include and validate a server-generated token.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Joomla\!Application
Affected:>= 3.9.0, <= 3.9.19

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Joomla version
    Open the file /libraries/src/Version.php and locate the RELEASE and DEV_LEVEL constants, or check the administrator dashboard footer for the version number
    Affected if The version is 3.9.0 through 3.9.19 inclusive
  2. Confirm com_privacy component exists
    Verify the directory /administrator/components/com_privacy/ exists on the server
    Affected if The com_privacy component is installed on the system
  3. Inspect remove request code for missing token validation
    Examine the controller file in /administrator/components/com_privacy/controllers/requests.php and locate the remove or delete task method. Check whether $this->checkToken() or JSession::checkToken() is called at the beginning of that method
    Affected if The remove request task exists but does not call any token validation method (checkToken or similar)
  4. Verify if privacy requests can be created
    Log into the Joomla administrator panel, navigate to Components > Privacy > Requests, and check if the interface allows creating new removal requests
    Affected if The privacy request functionality is accessible and active in the admin interface

A user is affected if they are running Joomla version 3.9.0 through 3.9.19, have the com_privacy component installed, and the remove request code lacks CSRF token validation.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Upgrade available Upgrade to a release after 3.9.19
Interim mitigation

Implement proper CSRF token validation in the remove request action of com_privacy, or upgrade to Joomla 3.9.20 or later which includes the patched token check. All remove request forms and AJAX actions must include and validate a server-generated token.

Fix this in Joomla\! Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing2.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,240
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,984.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2020-15695 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-15695 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data