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CVE-2023-20232

17
FAUCET Score

CVE-2023-20232 is a web cache poisoning vulnerability in the Tomcat implementation of Cisco Unified Contact Center Express (Unified CCX). It stems from improper input validation of HTTP requests, allowing an unauthenticated, remote attacker to redirect users to an attacker-controlled host. Rated Medium with a CVSS score of 5.3, this vulnerability requires no user interaction or privileges, but its impact is limited to low integrity. The attack complexity is low, as it involves sending crafted HTTP requests to a specific API endpoint. Currently, there is no evidence of active exploitation, nor is public exploit code available (Metasploit, Nuclei, ExploitDB). Community discussion and media coverage are minimal, indicating low public awareness and attention.

Impacted Technologies

VendorProductVersion(s)CPE
< 12.5\(1\)_su2_es05CPE matchmatch criteria
cpe:2.3:a:cisco:unified_contact_center_express:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.42%
Probability of exploitation in next 30 days
EPSS Percentile
34.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 21st percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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

Patch Available

Vendor Patches (1)

ciscopatch availablevia nvd_reference
View patch

References

sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-uccx-wcp-JJeqDT3S
PatchVendor Advisory