CVE-2024-20270
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 · uneditedA vulnerability in the web-based management interface of Cisco BroadWorks Application Delivery Platform and Cisco BroadWorks Xtended Services Platform could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface. This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.
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 confidenceThis is a stored XSS vulnerability in Cisco BroadWorks Application Delivery Platform and Xtended Services Platform web-based management interfaces. An authenticated attacker can inject malicious scripts through unsanitized user input that gets stored on the server; when other users click crafted links triggering the stored payload, the script executes in their browser context, enabling session hijacking or data theft.
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>= 24.0.2023.01, < 24.0.2023.10>= 25.0.2023.01, < 25.0.2023.10= 23.0.2024.01>= 24.0.2023.01, < 24.0.2023.10>= 25.0.2023.01, < 25.0.2023.10= 23.0.2024.01CVSS 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
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/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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Identify installed BroadWorks platform versionAccess the web management interface and navigate to the About or System Information page, or use the CLI command 'show version' if available, to determine the exact software version of either Cisco BroadWorks Application Delivery Platform or Cisco BroadWorks Xtended Services Platform.Affected if The installed version matches one of these patterns: >= 24.0.2023.01 and < 24.0.2023.10, OR >= 25.0.2023.01 and < 25.0.2023.10, OR exactly 23.0.2024.01.
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Confirm web management interface is accessibleVerify that the web-based management interface for the BroadWorks platform is reachable by attempting to access the management URL (typically port 80/443 or a custom web port) from an authorized network.Affected if The web management interface is exposed and accessible, providing a vector for stored XSS injection.
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Verify authentication is enabledLog into the web management interface with valid credentials to confirm that user authentication is configured and functional.Affected if Authenticated users have access to input fields where data gets stored and displayed to other users.
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Identify stored user input fieldsIn the management interface, locate input fields that store and display user-supplied data back to other users, such as user profile fields, configuration labels, or description fields.Affected if The application stores user input that is rendered to other users without sanitization, enabling stored XSS.
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Check for existing malicious payloadsReview application logs and stored data for any suspicious script tags, JavaScript event handlers, or encoded payloads in user-modifiable fields.Affected if Malicious JavaScript payloads are found stored in user-editable fields within the management interface.
A user is affected if their Cisco BroadWorks Application Delivery Platform or Xtended Services Platform is running a version within the specified ranges AND the web management interface is accessible to authenticated users who can input and store data that gets rendered to others.
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 · scoped24.0.2023.1025.0.2023.10
Apply Cisco-provided patches when available; implement robust input validation and output encoding on all user-supplied data rendered in the web interface; consider Content Security Policy headers to mitigate XSS impact.
24.0.2023.10 or 25.0.2023.10 (depending on release track)
- 1. Access the Cisco BroadWorks security advisory at sec.cloudapps.cisco.com for CVE-2024-20270
- 2. Identify your current BroadWorks Application Delivery Platform or Xtended Services Platform version via the web-based management interface or CLI
- 3. For systems on release 24.0: upgrade to version 24.0.2023.10 or later
- 4. For systems on release 25.0: upgrade to version 25.0.2023.10 or later
- 5. For systems on release 23.0.2024.01: upgrade to the next available maintenance release (24.0.2024.01 or later)
- 6. Schedule the upgrade during a planned maintenance window
- 7. After upgrade, verify the new version is installed and the web-based management interface is accessible
- 8. Test that the interface functions normally and confirm the XSS vulnerability is remediated
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-20270 — 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-2024-20270 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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- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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