CVE-2004-0717
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 · uneditedOpera 7.51 for Windows and 7.50 for Linux does not properly prevent a frame in one domain from injecting content into a frame that belongs to another domain, which facilitates web site spoofing and other attacks, aka the frame injection vulnerability.
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 confidenceOpera 7.51 for Windows and 7.50 for Linux failed to properly enforce same-origin policy restrictions on frame elements, allowing a malicious page from one domain to inject arbitrary content into frames belonging to a different domain, enabling web site spoofing and cross-domain attacks.
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= 7.50= 7.51CVSS 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
- Partial
- Integrity
- Partial
- Availability
- Partial
AV:N/AC:L/Au:N/C:P/I:P/A:P
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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Locate Opera browser installationCheck for Opera browser in typical installation directories: Windows: C:\Program Files\Opera\opera.exe or C:\Program Files (x86)\Opera\opera.exe; Linux: /usr/bin/opera, /usr/local/bin/opera, or ~/.opera/operaAffected if Opera browser executable exists on the system
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Determine Opera version on WindowsRight-click on opera.exe, select Properties, then go to the Version tab. Alternatively, open Opera and go to Help > About Opera to view the exact version number.Affected if Version displayed is exactly 7.50 or 7.51
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Determine Opera version on LinuxOpen a terminal and run: opera -version or opera --version. Alternatively, open Opera and check Help > About Opera.Affected if Version displayed is exactly 7.50 or 7.51
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Verify same-origin policy vulnerability contextThis vulnerability specifically affects the handling of frame elements and cross-origin content. The flaw allows a malicious page from one domain to inject content into frames of a different domain.Affected if Opera version is 7.50 or 7.51 AND the browser is used to browse untrusted websites with frame-based content
The environment is affected if Opera Browser version 7.50 or 7.51 is installed and used, as these specific versions fail to properly enforce same-origin policy restrictions on frame elements.
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 dataUpgrade to a patched version of Opera or migrate to a currently supported web browser that properly isolates frame content between different origins.
- Consultation1.0 h
- Implementation0.5 h
- Testing1.0 h
- Review / QA0.5 h
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 locallyCheck whether your project pulls in CVE-2004-0717 — 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-2004-0717 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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