dbcve.org
Enterprise Chat And EmailApplication · Cisco

CVE-2024-20367

MEDIUM · 5.4 CVSS v3.1 Published 2024-04-03
Fix available
A fix is available. Upgrade to 12.5 / 12.6 or later.
See remediation →
58/100
Remediation priority · Elevated
Remotely reachable

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 the web UI of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface. This vulnerability exists because the web UI 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. To successfully exploit this vulnerability, an attacker would need valid agent credentials.

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 confidence

Cross-site scripting (XSS) vulnerability in Cisco Enterprise Chat and Email web UI due to improper validation of user-supplied input. An authenticated attacker with valid agent credentials can craft malicious links that, when clicked by a user, execute arbitrary script code in the context of the affected interface or access sensitive browser-based information.

MitigationImplement proper input validation and output encoding for all user-supplied data in the web UI to prevent XSS attacks. Additionally, consider implementing Content Security Policy (CSP) headers as a defense-in-depth measure.

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
Enterprise Chat And EmailApplication
Affected:>= 12.5(1), < 12.5(1)es9>= 12.6(1), < 12.6(1)es7

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
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 checks

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

  1. Determine Cisco ECE installed version
    Access the Cisco Enterprise Chat and Email administrative interface or about page to retrieve the running software version. Common paths include the system administration section or a /about endpoint in the web UI.
    Affected if The installed version falls within 12.5(1) through 12.5(1)es8 OR 12.6(1) through 12.6(1)es6.
  2. Confirm web UI is enabled
    Verify that the Cisco Enterprise Chat and Email web user interface is accessible and enabled for agent or administrator logins.
    Affected if The web UI is accessible to authenticated agents, making the XSS vector viable.
  3. Check for agent accounts
    Review user management or authentication logs to confirm valid agent accounts exist in the system.
    Affected if Authenticated agent accounts are present, which is required for an attacker to exploit the XSS flaw.

A system is affected if it runs Cisco Enterprise Chat and Email versions 12.5(1) through 12.5(1)es8 or 12.6(1) through 12.6(1)es6 with the web UI enabled and agent accounts configured.

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.

dbcve · scoped
Upgrade available Upgrade to 12.5 / 12.6 or later
Fixed in 12.512.6
Interim mitigation

Implement proper input validation and output encoding for all user-supplied data in the web UI to prevent XSS attacks. Additionally, consider implementing Content Security Policy (CSP) headers as a defense-in-depth measure.

Recommended fix High confidence

Upgrade to ECE 12.5(1)es9 or later, OR ECE 12.6(1)es7 or later

  1. Verify current ECE version by checking the About section in the web UI or using the ECE admin console
  2. Confirm the exact installed version (12.5(1) through 12.5(1)es8 OR 12.6(1) through 12.6(1)es6) to determine target upgrade path
  3. Obtain the appropriate upgrade package from Cisco (12.5(1)es9 or later, OR 12.6(1)es7 or later)
  4. Review Cisco upgrade documentation and release notes for ECE
  5. Create a full backup of the current ECE installation including database and configuration
  6. Schedule maintenance window as upgrade will require system downtime
  7. Follow Cisco's documented upgrade procedure for ECE, typically involving stopping services, applying the update, and restarting
  8. After upgrade, verify the new version is installed and confirm the XSS vulnerability is remediated by testing input validation
Caveat Standard Cisco upgrade considerations apply - review release notes for any configuration or compatibility changes before upgrading; ensure backup and test environment validation prior to production deployment

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Enterprise Chat And Email Scoped from the published advisory
  • Consultation4.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA4.0 h
26.0 hours of engineering $4,580
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,328.

Scan for this in your stack

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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-2024-20367 in production — separate from our analysis above.

No notes yet

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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