CVE-2007-1406
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 · uneditedTrac before 0.10.3.1 does not send a Content-Disposition HTTP header specifying an attachment in certain "unsafe" situations, which has unknown impact and remote attack vectors.
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 · moderate confidenceTrac before 0.10.3.1 fails to send the Content-Disposition HTTP header in certain situations, which can allow browsers to MIME-sniff the response and potentially execute malicious content as HTML or JavaScript (e.g., XSS attacks). This missing header causes the browser to determine content type rather than treating it as an attachment, leading to unsafe file handling.
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= 0.10= 0.10.1= 0.10.2= 0.10.3CVSS 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
- None
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:N/AC:L/Au:N/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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Identify installed Trac versionRun 'trac-admin --version' or check the version file in your Trac installation directory (often in the 'about' or 'VERSION' file in the trac directory)Affected if Version is 0.10, 0.10.1, 0.10.2, or 0.10.3 (versions 0.10.3.1 and later are patched)
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Verify Content-Disposition header behaviorUse a browser's developer tools, curl (curl -I <trac_url>), or a similar HTTP inspection tool to request a file attachment from Trac (such as an attachment on a ticket or wiki page) and inspect the response headersAffected if The response lacks a 'Content-Disposition: attachment' header for downloadable content - the absence of this header indicates vulnerability
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Check for HTML or script content served without attachment wrapperAccess Trac and navigate to areas that serve uploaded files or attachments, then view the raw HTTP response to see if the browser could MIME-sniff the content typeAffected if Attachments or downloadable content are served without Content-Disposition header, allowing browsers to interpret them as HTML/JavaScript rather than forcing download
If Trac version is 0.10 through 0.10.3 and HTTP responses for attachments lack Content-Disposition headers, the environment is vulnerable to MIME-sniffing based XSS attacks.
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 to Trac 0.10.3.1 or later to receive the patched version that properly sends Content-Disposition headers. If upgrade is not immediately possible, configure the web server to force Content-Disposition: attachment headers for Trac-served content.
Trac 0.10.3.1 or later (preferably latest 0.10.x or consider migrating to newer series like 0.11/0.12 for additional fixes)
- 1. Backup your Trac installation, database, and all project data before proceeding
- 2. Identify your current Trac version by checking the installed version (e.g., trac-admin --version or in the about page)
- 3. Stop the Trac web server to prevent data corruption during upgrade
- 4. Install Trac 0.10.3.1 or later using your package manager or by downloading from trac.edgewall.org
- 5. If upgrading via pip: run 'pip install Trac==0.10.3.1' or for the latest 0.10.x 'pip install "Trac<0.11"'
- 6. Upgrade your Trac environment: run 'trac-admin /path/to/env upgrade'
- 7. Restart the Trac web server
- 8. Verify the upgrade was successful by checking the Trac version in the About page
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 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 $5,600.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2007-1406 — 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-2007-1406 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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