CVE-2024-20405
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 Finesse could allow an unauthenticated, remote attacker to conduct a stored XSS attack by exploiting an RFI vulnerability. This vulnerability is due to insufficient validation of user-supplied input for specific HTTP requests that are sent to an affected device. An attacker could exploit this vulnerability by persuading a user 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 information on the affected device.
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 confidenceA stored XSS vulnerability exists in Cisco Finesse's web-based management interface due to insufficient validation of user-supplied input in specific HTTP requests. An unauthenticated remote attacker can exploit this by sending crafted HTTP requests that cause malicious scripts to be stored on the affected device, which then execute when other users access the 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< 11.6\(1\)= 11.6\(1\)= 12.6\(2\)CVSS 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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Confirm Cisco Finesse is installedIdentify whether the Cisco Finesse application is present in the environment by reviewing installed software, running services, or consulting system documentationAffected if Cisco Finesse is not installed or not in use, the vulnerability does not apply
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Determine the installed versionLocate and retrieve the installed version of Cisco Finesse using the method provided in Cisco Finesse documentation (such as CLI command, admin console, or version file)Affected if The installed version matches < 11.6(1), = 11.6(1), or = 12.6(2)
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Verify web management interface accessibilityConfirm whether the Cisco Finesse web-based management interface is accessible to users or network segmentsAffected if The web management interface is exposed and users can access it, making exploitation possible
A user is affected if Cisco Finesse is installed with a version of 11.6(1) or 12.6(2) (or any version prior to 11.6(1)) and the web-based management interface is accessible to users.
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 · scoped11.6
Apply the vendor-supplied patch from Cisco for Finesse. If immediate patching is not possible, implement input validation controls or deploy a WAF rule to filter malicious HTTP request parameters.
Cisco Finesse 12.6(3) or later (verify exact fixed version from Cisco security advisory)
- Check Cisco's official security advisory (sec.cloudapps.cisco.com) for the specific fixed release of Cisco Finesse
- Download the fixed release version (typically 12.6(3) or later, or the latest 12.x release)
- Review the upgrade procedure in Cisco Finesse installation and upgrade guides
- Perform a backup of the current Finesse configuration before upgrading
- Upgrade Cisco Finesse to the fixed version following the official upgrade procedure
- Verify the upgrade was successful and the vulnerability is remediated
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-20405 — 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-2024-20405 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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