CVE-2018-0390

Name: CVE-2018-0390
Creator: NVD / NIST
Published: 2018-07-18T23:29:01.103+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.01%

Last modified Jun 17, 2026

CVE-2018-0390 is a vulnerability of currently unknown severity. A vulnerability in the web framework of Cisco Webex could allow an unauthenticated, remote attacker to conduct a Document Object Model-based (DOM-based) cross-site scripting (XSS) attack against the user of the web interface of an affected system. The vulnerability is due to insufficient input validation of certain parameters that are passed to the affected software by using the HTTP POST method. EPSS estimates a 1.01% chance of exploitation in the next 30 days.

Description

A vulnerability in the web framework of Cisco Webex could allow an unauthenticated, remote attacker to conduct a Document Object Model-based (DOM-based) cross-site scripting (XSS) attack against the user of the web interface of an affected system. The vulnerability is due to insufficient input validation of certain parameters that are passed to the affected software by using the HTTP POST method. An attacker who can submit malicious scripts to the affected user interface element could execute arbitrary script or HTML code in the user's browser in the context of the affected site. Cisco Bug IDs: CSCvj33287.

Metrics

EPSS Probability

1.01%

58.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Webex Meetings	2.0

References

http://www.securityfocus.com/bid/104865Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180718-webex-DOM-xssVendor Advisory
http://www.securityfocus.com/bid/104865Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180718-webex-DOM-xssVendor Advisory

Timeline

Published: Jul 18, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-0390?

How severe is CVE-2018-0390?

Severity scoring for CVE-2018-0390 is pending analysis. The EPSS model estimates a 1.01% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0390?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-0390?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST