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CVE Record

CVE-2020-3472: Cisco Webex Meetings User Email Address Information Disclosure Vulnerability

A vulnerability in the contacts feature of Cisco Webex Meetings could allow an authenticated, remote attacker with a legitimate user account to access sensitive information. The vulnerability is due to improper access restrictions on users who are added within user contacts. An attacker on one Webex Meetings site could exploit this vulnerability by sending specially crafted requests to the Webex Meetings site. A successful exploit could allow the attacker to view the details of users on another Webex site, including user names and email addresses.

MediumCVSS 5Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This vulnerability could let a legitimate Webex Meetings user expose names and email addresses from another Webex site. It is not a system takeover issue, but it can leak personal/contact data and support phishing or account-enumeration activity.

Executive priority

Treat this as a privacy and phishing-enablement risk rather than a service compromise. Prioritize confirmation with Cisco guidance, especially for organizations with sensitive user directories or multiple Webex sites.

Technical view

CWE-200 information disclosure in the Cisco Webex Meetings contacts feature. Improper access restrictions could allow an authenticated remote attacker with a legitimate account to send crafted requests and view user details, including names and email addresses, on another Webex site. CVSS 3.1 score is 5.0.

Likely exposure

Exposure is most relevant to organizations using Cisco Webex Meetings sites with authenticated users. The supplied sources do not identify specific affected versions, deployment models, or whether only cloud-hosted sites were affected.

Exploitation context

The source bundle does not show CISA KEV listing or active exploitation. Exploitation requires a legitimate Webex Meetings user account and network access to the Webex Meetings site.

Researcher notes

The key uncertainty is version and remediation detail; the supplied CVE data lists affected versions as n/a. Validation should focus on advisory mapping and exposure of cross-site user directory information without attempting exploit reproduction.

Mitigation direction

  • Review Cisco’s advisory for affected and fixed Webex Meetings guidance.
  • Apply Cisco-recommended updates or service-side remediation if applicable.
  • Limit Webex account access to users with a business need.
  • Review tenant/site separation and contact visibility settings where available.

Validation and detection

  • Inventory Cisco Webex Meetings sites used by the organization.
  • Confirm each site’s status against Cisco advisory guidance.
  • Check whether external or low-trust accounts exist on Webex sites.
  • Review logs or audit data for unusual contact lookup activity.
Prepared
Confidence
high
Sources
3

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-200: Information exposure and cloud metadata lookup

Information exposure and SSRF weaknesses can make discovery, cloud metadata, and credential material review relevant. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2020-3472 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N3.11.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5Medium
CVSS 3.1 vector shape for CVE-2020-3472Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
CiscoCisco Webex Meetingsn/aListed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-200 · source CWE mapping

Exposure of Sensitive Information to an Unauthorized Actor

Exposure of Sensitive Information to an Unauthorized Actor represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.