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CVE-2018-15403

20
FAUCET Score

CVE-2018-15403 is an open redirect vulnerability affecting the web interfaces of Cisco Emergency Responder, Cisco Unified Communications Manager, Cisco Unified Communications Manager IM & Presence Service, and Cisco Unity Connection. An authenticated, remote attacker can exploit improper input validation in HTTP request parameters to redirect users to malicious web pages, facilitating phishing attacks. Rated Medium (CVSS 5.4), the attack requires user interaction and authenticated access, with potential impacts on confidentiality and integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
10.5\(2.10000.5\)CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager:10.5\(2.10000.5\):*:*:*:*:*:*:*
11.0\(1.10000.10\)CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager:11.0\(1.10000.10\):*:*:*:*:*:*:*
11.5\(1.10000.6\)CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager:11.5\(1.10000.6\):*:*:*:*:*:*:*
12.0\(1.10000.10\)CPE matchmatch criteria
cpe:2.3:a:cisco:unified_communications_manager:12.0\(1.10000.10\):*:*:*:*:*:*:*
9.1\(1\)es23CPE matchmatch criteria
cpe:2.3:a:cisco:unity_connection:9.1\(1\)es23:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.4MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.22%
Probability of exploitation in next 30 days
EPSS Percentile
65.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0122 is in the 95th percentile among its peer group of 15,239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20181003-er-ucm-redirect
Vendor Advisory
securitytracker.com / id/1041780
Third Party AdvisoryVDB Entry
securitytracker.com / id/1041789
Third Party AdvisoryVDB Entry