dbcve.org
Joomla\!Application · Joomla

CVE-2022-27912

MEDIUM · 5.3 CVSS v3.1 Published 2022-10-25
Fix available
A fix is available. Upgrade to after 4.2.3 or later.
See remediation →
62/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

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! 4.0.0 through 4.2.3. Sites with publicly enabled debug mode exposed data of previous requests.

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

Joomla! 4.0.0 through 4.2.3 contained an information disclosure vulnerability where publicly enabled debug mode exposed data from previous user requests. This allowed potentially sensitive debug information to be accessible to unauthorized users.

MitigationDisable debug mode in production environments or restrict access to authorized IP addresses only via web server configuration.

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:>= 4.0.0, <= 4.2.3

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
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

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

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. Check Joomla version
    Navigate to System > Information > Joomla! Information in the admin panel, or inspect the /libraries/src/Version.php file to find the $RELEASE variable showing the version number
    Affected if version is 4.0.0, 4.1.0, 4.2.0, or 4.2.3
  2. Verify debug plugin is enabled
    Go to System > Manage > Plugins and search for the 'System - Debug' plugin. Check if it is published/enabled
    Affected if the System - Debug plugin is published (enabled)
  3. Confirm debug mode configuration
    Navigate to System > Global Configuration > Debug Settings, or inspect the configuration.php file for the line $debug = 1;
    Affected if Debug System is set to Yes in global configuration

If the installed Joomla version is 4.0.0 through 4.2.3 AND debug mode is enabled (either via the Debug plugin or global configuration setting), the environment is affected by this information disclosure vulnerability.

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.

dbcve · scoped
Upgrade available Upgrade to a release after 4.2.3
Interim mitigation

Disable debug mode in production environments or restrict access to authorized IP addresses only via web server configuration.

Recommended fix High confidence

Joomla! 4.2.4 or later

  1. Upgrade Joomla! to version 4.2.4 or later by downloading the latest package from developer.joomla.org and installing it via the Joomla Administrator update component, or use the Update button in the Joomla Update component within the administrator panel.

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Joomla\! Scoped from the published advisory
  • Consultation1.0 h
  • Implementation1.0 h
  • Testing1.0 h
  • Review / QA1.0 h
4.0 hours of engineering $750
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,200.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2022-27912 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

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-2022-27912 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

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