CVE-2018-15403

Name: CVE-2018-15403
Creator: NVD / NIST
Published: 2018-10-05T14:29:08.687+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.22%

Last modified Jun 17, 2026

CVE-2018-15403 is a vulnerability of currently unknown severity. A vulnerability in the web interface of Cisco Emergency Responder, Cisco Unified Communications Manager, Cisco Unified Communications Manager IM & Presence Service, and Cisco Unity Connection could allow an authenticated, remote attacker to redirect a user to a malicious web page. The vulnerability is due to improper input validation of the parameters of an HTTP request. EPSS estimates a 1.22% chance of exploitation in the next 30 days.

Description

A vulnerability in the web interface of Cisco Emergency Responder, Cisco Unified Communications Manager, Cisco Unified Communications Manager IM & Presence Service, and Cisco Unity Connection could allow an authenticated, remote attacker to redirect a user to a malicious web page. The vulnerability is due to improper input validation of the parameters of an HTTP request. An attacker could exploit this vulnerability by crafting an HTTP request that causes the web interface to redirect a request to a specific malicious URL. This type of vulnerability is known as an open redirect attack and is used in phishing attacks that get users to unknowingly visit malicious sites.

Metrics

EPSS Probability

1.22%

64.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Cisco	Unified Communications Manager	10.5\(2.10000.5\)
Cisco	Unified Communications Manager	11.0\(1.10000.10\)
Cisco	Unified Communications Manager	11.5\(1.10000.6\)
Cisco	Unified Communications Manager	12.0\(1.10000.10\)
Cisco	Unity Connection	9.1\(1\)es23
Cisco	Unified Communications Manager Im And Presence Service	10.5\(1\)
Cisco	Unified Communications Manager Im And Presence Service	10.5\(2\)
Cisco	Unified Communications Manager Im And Presence Service	12.0\(1\)
Cisco	Unified Communications Manager Im And Presence Service	12.5\(1\)
Cisco	Emergency Responder	11.5\(4.59000.1\)
Cisco	Emergency Responder	12.0\(1.40000.3\)
Cisco	Emergency Responder	12.5\(0.98000.110\)

References

http://www.securitytracker.com/id/1041780Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041789Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-er-ucm-redirectVendor Advisory
http://www.securitytracker.com/id/1041780Third Party Advisory, VDB Entry
http://www.securitytracker.com/id/1041789Third Party Advisory, VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-er-ucm-redirectVendor Advisory

Timeline

Published: Oct 5, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-15403?

How severe is CVE-2018-15403?

Severity scoring for CVE-2018-15403 is pending analysis. The EPSS model estimates a 1.22% probability of exploitation in the next 30 days.

How do I fix CVE-2018-15403?

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-2018-15403?

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

Scan your code now

Source: NVD / NIST