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CVE-2022-20740

Cisco Firepower Management Center Software Cross-Site Scripting Vulnerability

MEDIUM
6.1
CVSS Score
Published: May 3, 2022 at 03:16 AM UTC
Updated: June 17, 2026 at 04:24 AM UTC
1 product affected across 1 vendorSecure Firewall Management Center

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

Description

A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting attack. This vulnerability is due to improper validation of user-supplied input to the web-based management interface. An attacker could exploit this vulnerability by convincing a user to click a link designed to pass malicious input to the interface. A successful exploit could allow the attacker to conduct cross-site scripting attacks and gain access to sensitive browser-based information.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Secure Firewall Management Center· Cisco
95%
v < 6.6.5.26.7.0 ≤ v < 7.0.27.1.0 ≤ v < 7.1.0.1
Affected range stops below 6.6.5.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.0.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 7.1.0.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisoryx_refsource_CISCO
Source: [email protected]
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-SfpEcvGT

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.1MEDIUMcisco
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-80CWE-79

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