CVE-2018-11475
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 · uneditedMonstra CMS 3.0.4 has a Session Management Issue in the Users tab. A password change at users/1/edit does not invalidate a session that is open in a different browser.
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 confidenceMonstra CMS 3.0.4 fails to invalidate active user sessions when a password is changed through the admin panel (users/1/edit). This allows sessions authenticated with the old password to remain active even after the password has been updated, creating a window where compromised credentials continue to provide access.
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= 3.0.4CVSS 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
- Low
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/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 checksWork through these to decide whether this CVE applies to you.
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Identify Monstra CMS installation and versionLook for Monstra CMS files in the web root. Check for a version file or examine the footer of any Monstra page for the version number. Common paths include /engine/VERSION or /core/version.php.Affected if The installed version is Monstra CMS 3.0.4 exactly
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Verify admin panel accessNavigate to the admin login page (typically /admin or /index.php?route=admin) and confirm access to the user management section at users/1/edit.Affected if The admin panel at users/1/edit is accessible and the application is Monstra 3.0.4
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Check session handling after password change1. Log into the admin panel. 2. Note the current session identifier (check browser cookies for PHPSESSID or similar). 3. Navigate to users/1/edit and change the password. 4. Attempt to use the previously established session (do not re-login) to access protected resources.Affected if The old session still provides authenticated access after the password has been changed, indicating sessions are not being invalidated
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Inspect session management codeExamine the password change handler in the Monstra 3.0.4 source code, typically in /plugins/users/ users.admin.php or similar user management files, for session_destroy() or session_regenerate_id() calls when a password is updated.Affected if The password change code lacks session invalidation logic (no session_destroy or session regeneration found when password is modified)
A user is affected if they are running Monstra CMS 3.0.4 and old sessions remain valid after a password is changed through the admin panel, allowing continued access with stale credentials.
Generated from the published advisory. Verify against your own configuration.
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 dataImplement session invalidation logic in the password change functionality to terminate all active sessions associated with the user account when the password is modified, or at minimum invalidate the current session and require re-authentication.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,088.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-11475 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2018-11475 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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