CVE-2024-20405

MEDIUM

Cisco Finesse - Stored Cross-Site Scripting via RFI in Web Management Interface

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2024-20405. PoCs published by 3zz4t.

AI-analyzed exploit summary This repository provides a functional proof-of-concept for CVE-2024-20405, demonstrating a stored XSS attack via RFI in Cisco Finesse's web-based management interface. The PoC includes detailed steps to create a malicious XML configuration file, host it locally, and craft an HTTP request to exploit the vulnerability.

Description

A vulnerability in the web-based management interface of Cisco Finesse could allow an unauthenticated, remote attacker to conduct a stored XSS attack by exploiting an RFI vulnerability. This vulnerability is due to insufficient validation of user-supplied input for specific HTTP requests that are sent to an affected device. An attacker could exploit this vulnerability by persuading a user to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive information on the affected device.

Exploits (1)

nomisec WORKING POC 1 stars
by 3zz4t · poc
https://github.com/3zz4t/CVE-2024-20405

This repository provides a functional proof-of-concept for CVE-2024-20405, demonstrating a stored XSS attack via RFI in Cisco Finesse's web-based management interface. The PoC includes detailed steps to create a malicious XML configuration file, host it locally, and craft an HTTP request to exploit the vulnerability.

Classification
Working Poc 95%
Attack Type
Xss
Complexity
Moderate
Reliability
Reliable
Target: Cisco Finesse v12.6
No auth needed
Prerequisites: Access to a vulnerable Cisco Finesse instance · Ability to host a malicious XML file on a local web server · Victim interaction to click a crafted link
devstral-2 · analyzed Feb 19, 2026 Full analysis →

Scores

CVSS v3 4.8
EPSS 0.0065
EPSS Percentile 46.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-20 CWE-79
Status published
Products (3)
cisco/finesse 11.6\(1\) (6 CPE variants)
cisco/finesse 12.6\(2\) (3 CPE variants)
cisco/finesse < 11.6\(1\)
Published Jun 05, 2024
Tracked Since Feb 18, 2026