Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-20005

19
FAUCET Score

CVE-2023-20005 describes multiple stored cross-site scripting (XSS) vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) Software. An unauthenticated, remote attacker can exploit these flaws due to insufficient input validation, injecting malicious script into various data fields. This medium-severity vulnerability (CVSS 6.1) allows attackers to execute arbitrary script code in the context of the interface, access sensitive browser information, and potentially cause a temporary availability impact to parts of the FMC Dashboard. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog, though it has received some community and media attention.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.2.3, <= 6.2.3.18CPE matchmatch criteria
cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:*
>= 6.4.0, <= 6.4.0.16CPE matchmatch criteria
cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:*
>= 6.6.0, <= 6.6.7.1CPE matchmatch criteria
cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:*
>= 7.0.0, <= 7.0.5CPE matchmatch criteria
cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:*
>= 7.1.0, <= 7.1.0.3CPE matchmatch criteria
cpe:2.3:a:cisco:secure_firewall_management_center:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.8MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.7
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 33rd percentile among its peer group of 26,236 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

sec.cloudapps.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-sK2gkfvJ
Vendor Advisory