OctoberApplication · Octobercms

CVE-2022-35944

HIGH · 7.2 CVSS v3.1 Published 2022-10-13
Fix available
A fix is available. Upgrade to 2.2.34 / 3.0.66 or later.
See remediation →
78/100
Remediation priority · High
Remotely reachable 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
October is a self-hosted Content Management System (CMS) platform based on the Laravel PHP Framework. This vulnerability only affects installations that rely on the safe mode restriction, commonly used when providing public access to the admin panel. Assuming an attacker has access to the admin panel and permission to open the "Editor" section, they can bypass the Safe Mode (`cms.safe_mode`) restriction to introduce new PHP code in a CMS template using a specially crafted request. The issue has been patched in versions 2.2.34 and 3.0.66.

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

Authenticated admin users with Editor permissions can bypass the cms.safe_mode restriction in October CMS to inject arbitrary PHP code into CMS templates via specially crafted requests. This allows privilege escalation from a standard editor to code execution, but requires prior admin panel access.

MitigationUpgrade October CMS to version 2.2.34 or 3.0.66. Additionally, review admin user permissions and monitor for unauthorized template modifications as a defense-in-depth measure.

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
OctoberApplication
Affected:< 2.2.34>= 3.0.00, < 3.0.66

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
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

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 October CMS installed version
    Check the version file in your October CMS installation (typically found in the root directory or via the admin dashboard About page). Compare your installed version against the affected ranges: < 2.2.34 or >= 3.0.00 and < 3.0.66.
    Affected if Your installed version falls within the vulnerable version ranges.
  2. Verify cms.safe_mode configuration
    Locate the CMS configuration file (usually config/cms.php in the installation) and check the safe_mode setting. This setting controls whether PHP code injection is allowed in templates.
    Affected if safe_mode is enabled and you rely on it as a security boundary.
  3. Review Editor role permissions
    Access the admin panel and navigate to Administrators > Roles to review the Editor role permissions. Specifically check if Editor users have access to template modification features.
    Affected if Editor role users exist and have permissions to modify CMS templates.
  4. Audit recent template modifications
    Check the CMS templates directory (typically /cms/templates or /themes) for any unexpected changes, or review the system event logs for recent template save operations by Editor-level users.
    Affected if Template files have been modified recently by users with Editor permissions.

You are likely affected if your October CMS version is below 2.2.34 or between 3.0.00 and 3.0.66, you rely on cms.safe_mode for security, and Editor-role users have access to modify templates.

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 2.2.34 / 3.0.66 or later
Fixed in 2.2.343.0.66
Interim mitigation

Upgrade October CMS to version 2.2.34 or 3.0.66. Additionally, review admin user permissions and monitor for unauthorized template modifications as a defense-in-depth measure.

Recommended fix High confidence

Upgrade to version 2.2.34 (for 2.x branch) or 3.0.66 (for 3.x branch)

  1. 1. Backup your October CMS installation and database before upgrading
  2. 2. Identify your current October CMS version (check composer.json or system health page)
  3. 3. If running version 2.x (< 2.2.34): Run `composer update october/system` or use the one-click update in the admin panel to upgrade to 2.2.34
  4. 4. If running version 3.x (>= 3.0.00 and < 3.0.66): Run `composer update october/system` or use the one-click update in the admin panel to upgrade to 3.0.66
  5. 5. Clear application cache after upgrading (`php artisan cache:clear`)
  6. 6. Verify the new version is installed by checking the system information page
  7. 7. Confirm the Safe Mode restriction is now properly enforced by testing template editing permissions
Caveat Patch releases typically do not introduce breaking changes; however, always test in a staging environment first

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

Fix this in October 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

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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-2022-35944 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