CVE-2021-29243
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 · uneditedCloudera Manager 5.x, 6.x, 7.1.x, 7.2.x, and 7.3.x allows XSS.
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 confidenceCross-site scripting (XSS) vulnerability in Cloudera Manager versions 5.x through 7.3.x allows attackers to inject malicious scripts through unsanitized user input, potentially executing in the browsers of other users or administrators accessing the affected interface.
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>= 5.0.0, <= 5.16.2>= 6.0.0, <= 6.3.4>= 7.1.0, <= 7.1.4>= 7.2.0, <= 7.2.4>= 7.3.0, <= 7.3.4CVSS 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
- Privileges
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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.
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Verify Cloudera Manager is installedCheck for Cloudera Manager processes or packages. On Linux, run: `ps aux | grep -i cloudera` or list installed packages with `rpm -qa | grep -i cloudera-manager` or `dpkg -l | grep -i cloudera-manager`Affected if Cloudera Manager software is found running or installed on the system
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Determine installed Cloudera Manager versionRun the command: `cloudera-manager --version` or check the RPM/DEB package version with `rpm -qa | grep cloudera-manager` or `dpkg -l | grep cloudera-manager`Affected if The reported version falls within any of these ranges: 5.0.0 to 5.16.2, 6.0.0 to 6.3.4, 7.1.0 to 7.1.4, 7.2.0 to 7.2.4, or 7.3.0 to 7.3.4
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Confirm Cloudera Manager web interface is accessibleCheck if port 7180 (or configured port) is listening and accessible: `netstat -tlnp | grep 7180` or attempt a curl request: `curl -k https://localhost:7180/`Affected if The Cloudera Manager web interface is running and reachable, as the XSS vulnerability is exploitable through the web UI
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Identify active user-facing input fieldsLog into Cloudera Manager web UI and navigate to configuration pages where user input is accepted, such as cluster naming, service configuration, or user management settingsAffected if Unsantized input fields are present in the interface that could accept and store malicious scripts without encoding
You are affected if Cloudera Manager is installed, the web interface is accessible, and the installed version falls within the listed vulnerable version ranges.
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 dataApply vendor patches for CVE-2021-29243 to all affected Cloudera Manager installations; as an interim measure, implement strict input validation and output encoding on user-facing fields, and configure Content Security Policy headers to mitigate script injection risks.
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- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-29243 — 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-2021-29243 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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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
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