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TI-2018-10996 Aliases CVE-2018-15436GHSA-c26c-g6cg-x6vp

Cisco Webex Centers Cross-Site Scripting Vulnerability

Priority LOW 30CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

A vulnerability in the web-based management interface of Cisco Webex Events Center, Cisco Webex Meeting Center, Cisco Webex Support Center, and Cisco Webex Training Center could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of the affected service. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected service. An attacker could exploit this vulnerability by persuading a user of the interface to click a malicious 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01373 72nd 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
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco WebEx Event Centerall versions—No fix listedCNA
  • Cisco WebEx Event Center VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:cisco:webex_business_suite_31:*:*:*:*:*:*:*:*31.29.2VulnerableCisco
cpe:2.3:a:cisco:webex_business_suite_32:*:*:*:*:*:*:*:*32.17.2VulnerableCisco
cpe:2.3:a:cisco:webex_business_suite_33:*:*:*:*:*:*:*:*33.4.3VulnerableCisco
cpe:2.3:a:cisco:webex_meetings_online:t33.4.0:*:*:*:*:*:*:*t33.4.0VulnerableCisco
  • cpe:2.3:a:cisco:webex_business_suite_31:*:*:*:*:*:*:*:* Versions 31.29.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:webex_business_suite_32:*:*:*:*:*:*:*:* Versions 32.17.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:webex_business_suite_33:*:*:*:*:*:*:*:* Versions 33.4.3 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:webex_meetings_online:t33.4.0:*:*:*:*:*:*:* Versions t33.4.0 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-15436
  2. 2026-10-03 Alias added: GHSA-c26c-g6cg-x6vp

References

Advisory 1

  • TI-2018-00224 Improper input validation in Cisco WebEx Advanced Recording Format file players CVSS 3.0CRITICAL 9.6
  • TI-2018-00087 Improper input validation in Cisco WebEx Clients CVSS 3.0CRITICAL 9.0
  • TI-2018-10978 Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution Vulnerabilities CVSS 3.1HIGH 7.8
  • TI-2018-10970 Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution Vulnerabilities CVSS 3.1HIGH 7.8
  • TI-2018-10969 Cisco Webex Network Recording Player and Cisco Webex Player Remote Code Execution Vulnerabilities CVSS 3.0HIGH 7.8
  • TI-2018-00381 A vulnerability in the folder permissions of Cisco Webex Meetings client for Windows… CVSS 3.0HIGH 7.3

Sources

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