Cisco Data Center Network Manager Stored Cross-Site Scripting Vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- High
- 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 Data Center Network Manager (DCNM) could allow an authenticated, remote attacker with administrative credentials to conduct a cross-site scripting (XSS) attack against a user of the interface. The vulnerability is due to insufficient input validation by the web-based management interface. An attacker could exploit this vulnerability by inserting malicious data into a specific data field in 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. To exploit this vulnerability, the attacker would need administrative credentials on the affected device.
Why it matters now
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-3354
- 2026-10-03 Alias added: GHSA-wpfc-q4vv-fpq6
- 2026-11-06 EPSS moved to the 50th–90th percentile
References
More Cisco Data Center Network Manager vulnerabilities
- TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
- TI-2019-12015 Cisco Data Center Network Manager Authentication Bypass Vulnerabilities CVSS 3.1CRITICAL 9.8
- TI-2019-12016 Cisco Data Center Network Manager Authentication Bypass Vulnerabilities CVSS 3.1CRITICAL 9.8
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2019-01247 Cisco Data Center Network Manager Arbitrary File Upload and Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2019-01246 Cisco Data Center Network Manager Authentication Bypass Vulnerability CVSS 3.1CRITICAL 9.8
Sources
- CVE-2020-3354 · CVE Program
- CVE-2020-3354 · NVD
- FIRST EPSS
- GHSA-wpfc-q4vv-fpq6 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences