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CVE Record

CVE-2018-0436: Cisco Webex Teams Information Disclosure and Modification Vulnerability

A vulnerability in Cisco Webex Teams, formerly Cisco Spark, could allow an authenticated, remote attacker to view and modify data for an organization other than their own organization. The vulnerability exists because the affected software performs insufficient checks for associations between user accounts and organization accounts. An attacker who has administrator or compliance officer privileges for one organization account could exploit this vulnerability by using those privileges to view and modify data for another organization account. No customer data was impacted by this vulnerability.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

Cisco reported a Webex Teams issue where a privileged user in one organization could view and modify another organization's data because account-to-organization checks were insufficient. Cisco stated no customer data was impacted. Exposure appears limited to organizations using Cisco Webex Teams around the 2018 advisory timeframe, especially tenants with administrator or compliance officer roles. The source bundle does not identify affected versions, deployment conditions, or patch levels. Treat this as a tenant-boundary authorization issue requiring vendor confirmation and privilege review, not as evidence of active compromise. Business urgency is moderate unless the organization depended heavily on Webex Teams privileged workflows in 2018. Mitigation focus: Review Cisco's advisory for current vendor guidance and remediation status.; Audit Webex Teams administrator and compliance officer accounts for necessity.; Remove or reduce privileged roles that are no longer required..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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cwe · medium confidence lookup

CWE-284: Authorization and privilege behavior lookup

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cve · low confidence lookup

CVE-2018-0436 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
CiscoCisco Webex Teamsn/aListed
Weakness

CWE details

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CWE-284 · source CWE mapping

Improper Access Control

Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.