CVE intelligence and bounded remediation

CVE-2024-20310 — Cisco Unified Communications Manager Im And Presence Service security vulnerability

Medium CVSS 6.1

A vulnerability in the web-based interface of Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against an authenticated user of the interface. This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading an authenticated user of the interface 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 browser-based information.

Severity
Medium
CVSS
6.1 (3.1)
Published
2024-04-03
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-23

Affected products

  • cisco / unified_communications_manager_im_and_presence_service / 10.0(1)
  • cisco / unified_communications_manager_im_and_presence_service / 10.0(1)su1
  • cisco / unified_communications_manager_im_and_presence_service / 10.0(1)su2
  • cisco / unified_communications_manager_im_and_presence_service / 10.5(1)
  • cisco / unified_communications_manager_im_and_presence_service / 10.5(1)su1
  • cisco / unified_communications_manager_im_and_presence_service / 10.5(1)su2

Showing 6 representative product identities from 44 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Path traversal, unsafe upload, and file handling

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Check exposure

  • Trace untrusted filenames, archive entries, URLs, and path segments into read, write, include, extraction, and upload operations.
  • Identify filesystem roots, mount permissions, symbolic-link behavior, archive handling, and whether uploaded content is web-accessible or executable.
  • Review canonicalization and containment checks across supported operating systems and storage backends.

Remediate safely

  • Generate server-side storage identifiers and resolve paths beneath a fixed root using filesystem-aware containment checks.
  • Reject absolute, parent-relative, alternate-separator, device, link, and archive entries that escape the intended root.
  • Store uploads outside executable or served paths, validate type and size, and use private atomic temporary files.

Authoritative sources

Complete CVE record and remediation plan

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