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TI-2020-02876 Aliases CVE-2020-3320GHSA-2j2f-m353-7h94

Cisco Firepower Management Center Cross-Site Scripting Vulnerability

Priority LOW 25CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

A vulnerability in the web-based management interface of Cisco Firepower Management Center could allow an authenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability by first entering input within the web-based management interface and then persuading a user of the interface to view the crafted input within the interface. 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00633 50th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Firepower Management Centerall versions—No fix listedCNA
  • Cisco Firepower Management Center VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:*up to 6.6.1VulnerableCisco
cpe:2.3:a:cisco:sourcefire_defense_center:6.4.0:*:*:*:*:*:*:*6.4.0VulnerableCisco
cpe:2.3:a:cisco:sourcefire_defense_center:6.4.0.6:*:*:*:*:*:*:*6.4.0.6VulnerableCisco
cpe:2.3:a:cisco:sourcefire_defense_center:6.5.0:*:*:*:*:*:*:*6.5.0VulnerableCisco
cpe:2.3:a:cisco:sourcefire_defense_center:6.6.0:*:*:*:*:*:*:*6.6.0VulnerableCisco
  • cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:* Versions up to 6.6.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:sourcefire_defense_center:6.4.0:*:*:*:*:*:*:* Versions 6.4.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:sourcefire_defense_center:6.4.0.6:*:*:*:*:*:*:* Versions 6.4.0.6 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:sourcefire_defense_center:6.5.0:*:*:*:*:*:*:* Versions 6.5.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:sourcefire_defense_center:6.6.0:*:*:*:*:*:*:* Versions 6.6.0 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-3320
  2. 2026-10-03 Alias added: GHSA-2j2f-m353-7h94
  3. 2026-10-25 EPSS moved to the 50th–90th percentile

References

Advisory 1

  • TI-2026-16344 Cisco Secure Firewall Management Center Software Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-16292 Cisco Secure Firewall Management Center Authentication Bypass Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-16502 Cisco Secure Firewall Management Center Software Static Credential Vulnerability KEVCVSS 3.1MEDIUM 5.3
  • TI-2016-05515 The Threat Management Console in Cisco Firepower Management Center 5.2.0 through 6.0.1… CVSS 3.1HIGH 8.8
  • TI-2025-14563 Cisco Secure Firewall Management Center Software Radius Remote Code Execution Vulnerability CVSS 3.1CRITICAL 10.0
  • TI-2023-06757 Improper privilege management in Cisco Firepower Management Center CVSS 3.1CRITICAL 9.9
See all 186 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences