CVE-2007-6237
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 · uneditedcp.php in DeluxeBB 1.09 does not verify that the membercookie parameter corresponds to the authenticated member during a profile update, which allows remote authenticated users to change the e-mail addresses of arbitrary accounts via a modified membercookie parameter, a different vector than CVE-2006-4078. NOTE: this can be leveraged for administrative access by requesting password-reset e-mail through a lostpw action to misc.php.
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 confidenceIn DeluxeBB 1.09, the cp.php script fails to validate that the membercookie parameter matches the currently authenticated user when processing profile updates. This allows any authenticated user to supply a different membercookie value and modify the email address of arbitrary user accounts. Since password reset emails are sent to the stored email address, attackers can hijack accounts including administrative accounts.
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= 1.09CVSS 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
- Authentication
- Single
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:S/C:C/I:C/A:C
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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Confirm DeluxeBB installation and versionLocate DeluxeBB installation directories and check version files (typically version.php, footer.php, or similar) for version number 1.09Affected if The installed DeluxeBB version is exactly 1.09
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Verify cp.php exists and is accessibleCheck for the presence of cp.php in the web root or forum directory of the DeluxeBB installationAffected if cp.php file exists in the DeluxeBB installation directory
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Inspect cp.php for missing membercookie validationExamine the source code of cp.php, specifically looking at the profile update logic (around user profile modification functions) to see if the membercookie parameter is validated against the currently authenticated sessionAffected if cp.php processes profile updates without verifying that the membercookie matches the authenticated user session
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Check for vulnerable profile update parametersIn cp.php, locate the code handling email address changes and verify if user-supplied membercookie values can override the authenticated user identityAffected if The profile update functionality accepts a membercookie parameter and uses it to determine which user account to modify without additional validation
You are affected if DeluxeBB version 1.09 is installed and cp.php contains the profile update logic that does not validate the authenticated user identity against the submitted membercookie parameter.
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.
dbcve · scopedUpgrade DeluxeBB to a patched version. If no upgrade is available, implement server-side session validation in cp.php to verify the authenticated user identity matches the membercookie before processing any profile changes, and audit misc.php for similar vulnerabilities.
- 1. Migrate to a supported, actively maintained forum software (e.g., phpBB, MyBB, Flarum, or Discourse) as DeluxeBB 1.09 is no longer supported.
- 2. If immediate migration is not possible, implement a custom patch in cp.php to validate that the membercookie parameter matches the currently authenticated session user before allowing profile updates.
- 3. Add server-side session validation: check $_COOKIE['membercookie'] or $_SESSION['userid'] against the authenticated user before processing any profile changes.
- 4. Restrict access to cp.php to trusted IP addresses via .htaccess or server configuration if possible.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation6.0 h
- Implementation12.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2007-6237 — 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-2007-6237 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
- No spam, self-promotion, credentials, or personal data