CVE-2011-4553
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 · uneditedMultiple open redirect vulnerabilities in One Click Orgs before 1.2.3 allow (1) remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via the return_to parameter, and allow (2) remote authenticated users to redirect users to arbitrary web sites and conduct phishing attacks via crafted characters in the domain name of a subdomain.
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 confidenceOpen redirect vulnerabilities in One Click Orgs before version 1.2.3 allow remote attackers to conduct phishing attacks by redirecting users to arbitrary websites via the return_to parameter, and allow authenticated users to redirect users via crafted characters in subdomain domain names.
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<= 1.2.2= 1.0.0= 1.0.1= 1.1.0= 1.1.1= 1.2.0= 1.2.1CVSS 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
- M
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- None
AV:N/AC:M/Au:N/C:P/I:P/A:N
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.
-
Identify the installed One Click Orgs versionLocate the version file or configuration file that displays the One Click Orgs version number. This is typically found in the application metadata, a VERSION file, or the admin dashboard under system information.Affected if The installed version is 1.0.0, 1.0.1, 1.1.0, 1.1.1, 1.2.0, 1.2.1, or any version 1.2.2 or lower.
-
Inspect return_to parameter handlingReview the application code or web traffic logs to examine how the return_to parameter is processed during authentication or redirection flows. Look for code that handles redirect destinations after login or user actions.Affected if The return_to parameter is accepted and used for redirection without strict validation against an allowlist of trusted domains.
-
Review subdomain domain name validationExamine the code responsible for handling subdomain creation or modification, particularly where user-provided domain names are accepted and stored. Check for proper validation of domain name formats.Affected if The subdomain/domain name fields accept arbitrary input without sanitization or validation, allowing crafted characters that could be used for redirect manipulation.
-
Test for open redirect via return_toIf you have access to a test environment, attempt to access a One Click Orgs page with a crafted return_to parameter pointing to an external domain, such as return_to=http://attacker.example.com, and observe if the application redirects to the untrusted destination.Affected if The application redirects to the URL specified in the return_to parameter without validating it against an allowlist of trusted internal paths.
You are affected if your installed One Click Orgs version is 1.2.2 or lower, or specifically 1.0.0 through 1.2.1, and the application does not validate redirect parameters and domain names against an allowlist.
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 One Click Orgs version 1.2.3 or later which contains fixes for the open redirect vulnerabilities. Implement strict validation of redirect parameters and domain names to prevent untrusted destinations.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2011-4553 — 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-2011-4553 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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