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Webex Meeting CenterApplication · Cisco

CVE-2017-12298

MEDIUM · 6.1 CVSS v3.0 Published 2017-10-19
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

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 · unedited
A vulnerability in Cisco WebEx Meeting Center could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of an affected system. The vulnerability is due to insufficient input validation of some parameters that are passed to the web server of the affected system. An attacker could exploit this vulnerability by convincing a user to follow a malicious link or by intercepting a user request and injecting malicious code into the request. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected web interface or allow the attacker to access sensitive browser-based information. Cisco Bug IDs: CSCvf78615, CSCvf78628.

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 confidence

Cross-site scripting (XSS) vulnerability in Cisco WebEx Meeting Center caused by insufficient input validation of parameters passed to the web server. An unauthenticated remote attacker can inject malicious script code into requests that get executed in the context of the affected user's web interface, potentially allowing access to sensitive browser-based information.

MitigationApply Cisco's available patch for CSCvf78615/CSCvf78628. Until patch is applied, implement input validation and output encoding on affected parameters, and consider WAF rules to detect and block XSS attack patterns.

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
Webex Meeting CenterApplication
Affected:all versions

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:3.0/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 checks

Work through these to decide whether this CVE applies to you.

  1. Confirm Cisco WebEx Meeting Center deployment
    Identify whether your organization uses Cisco WebEx Meeting Center for web conferencing. Check installed packages, hosted services, or vendor contracts for WebEx Meeting Center. Look for meeting center URLs (typically at webex.com/yourcompany/meetingcenter or similar paths).
    Affected if Your environment hosts or uses Cisco WebEx Meeting Center web interface.
  2. Identify the WebEx Meeting Center web interface
    Locate the web server hosting WebEx Meeting Center. This is typically accessible via HTTPS on your organization's WebEx subdomain. Verify the service is running by accessing the meeting center login or meeting page.
    Affected if The Cisco WebEx Meeting Center web interface is accessible and responds to requests.
  3. Review web server access logs for XSS attempts
    Examine HTTP access logs on the WebEx Meeting Center web server for unusual characters in request parameters. Look for patterns like <script>, javascript:, onerror=, or other HTML/script tags in query strings, POST bodies, or headers.
    Affected if Malicious script injection patterns appear in web logs, indicating active exploitation attempts.
  4. Test for reflected XSS via parameter injection
    Submit a harmless test payload (such as a simple alphanumeric string like 'TEST123') to web application parameters and verify the response reflects this input verbatim without encoding. Then test with basic XSS probe strings in different parameter values.
    Affected if User-supplied input is reflected in the response without proper encoding or validation, indicating the input validation flaw exists.

If Cisco WebEx Meeting Center is deployed and its web interface is accessible, the environment is affected since all versions of this product contain the XSS vulnerability.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply Cisco's available patch for CSCvf78615/CSCvf78628. Until patch is applied, implement input validation and output encoding on affected parameters, and consider WAF rules to detect and block XSS attack patterns.

Fix this in Webex Meeting Center Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2017-12298 in production — separate from our analysis above.

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What this is

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.

What belongs here
  • 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