CVE-2015-6812
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 · uneditedInvision Power Services IPS Community Suite (aka Invision Power Board, IPB, or Power Board) before 4.0.12.1 allows remote attackers to cause a denial of service (loop and memory consumption) via a crafted URL.
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 confidenceInvision Power Services IPS Community Suite before version 4.0.12.1 contains a vulnerability where specially crafted URLs trigger an infinite loop during processing. This loop causes uncontrolled memory consumption, leading to denial of service. The vulnerability is remotely exploitable without authentication.
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<= 4.0.11CVSS 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
- None
- Integrity
- None
- Availability
- Complete
AV:N/AC:L/Au:N/C:N/I:N/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 the installed IPS Community Suite versionLog into the admin dashboard and navigate to System > Overview, or check the footer of the community pages for the version number. The version is typically displayed as '4.0.x' in the product.Affected if The displayed version is 4.0.11 or lower (e.g., 4.0.10, 4.0.9, etc.)
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Verify the exact version number in system filesIf accessible, check the application's version file (commonly /init.php or a version.php file in the installation root) for the defined IPS_VERSION constant or similar version definition.Affected if The version defined in system files is 4.0.11 or lower.
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Confirm the application is exposed to remote requestsVerify the IPS Community Suite is directly accessible over HTTP/HTTPS to the internet or internal network. The vulnerability is exploitable via specially crafted URLs sent to the web server.Affected if The application accepts HTTP requests from users without requiring authentication and the version is within the affected range.
You are affected if your installed IPS Community Suite version is 4.0.11 or any earlier 4.0.x release, as the infinite loop flaw in URL processing exists only in versions prior to 4.0.12.1.
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 IPS Community Suite version 4.0.12.1 or later to obtain the vendor patch. As a temporary measure, consider rate limiting or web application firewall rules to block suspicious request patterns.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2015-6812 — 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-2015-6812 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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