TI-2018-00395 Aliases CVE-2018-0436 GHSA-jr8m-x5pc-vrvr

Cisco Webex Teams Information Disclosure and Modification Vulnerability

MEDIUM 42CWE-284Published 2018-10-05 · Updated 2024-11-26

Key facts

Attack vector: Network
Privileges required: High
User interaction: None
Attack complexity: Low
Impact type: Security bypass, Privilege escalation
Confidentiality · integrity · availability: High · High · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-284 and CWE-269.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01284 70th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Cisco	Cisco Webex Teams	all versions	—	No fix listed	CNA

Cisco Webex Teams VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:webex_teams::::::::	before 10.6.0	Vulnerable	Cisco

cpe:2.3:a:cisco:webex_teams:*:*:*:*:*:*:*:* Versions before 10.6.0 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-0436
2026-10-03 Alias added: GHSA-jr8m-x5pc-vrvr

References

Advisory 1

20180905 Cisco Webex Teams Information Disclosure and Modification Vulnerability

TI-2019-01262 Cisco Webex Teams URI Handler Insecure Library Loading Vulnerability CVSS 3.0HIGH 7.8
TI-2019-01559 Cisco Webex Teams Logging Feature Command Execution Vulnerability CVSS 3.1HIGH 8.8
TI-2018-00346 Improper input validation in Cisco Webex Teams unknown CVSS 3.1HIGH 8.8
TI-2025-14536 Cisco Webex App Client-Side Remote Code Execution Vulnerability CVSS 3.1HIGH 8.8
TI-2020-03080 Cisco Webex Teams Client for Windows DLL Hijacking Vulnerability CVSS 3.1HIGH 8.4
TI-2021-01229 Cisco Webex Network Recording Player and Webex Player Memory Corruption Vulnerability CVSS 3.1HIGH 7.8

See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences