Cisco Vision Dynamic Signage Director Stored Cross-Site Scripting Vulnerability
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- 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 · CNA. Fix status from CNA. Impact type from CWE-79.
Summary
A vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an authenticated, remote attacker with administrative privileges to conduct a cross-site scripting (XSS) attack against a user of the interface on an affected device. The vulnerability exists because the web-based management interface does not properly validate user-supplied input. 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 interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker would need to have administrative privileges 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-2020-3491
- 2026-10-03 Alias added: GHSA-vxm5-p34v-5xv5
References
More Cisco Vision Dynamic Signage Director vulnerabilities
- TI-2019-01537 Cisco Vision Dynamic Signage Director REST API Authentication Bypass Vulnerability CVSS 3.0CRITICAL 9.8
- TI-2020-03138 Cisco Vision Dynamic Signage Director Missing Authentication Vulnerability CVSS 3.1MEDIUM 6.5
- TI-2019-12043 Cisco Vision Dynamic Signage Director Authentication Bypass Vulnerability CVSS 3.1MEDIUM 6.5
- TI-2020-03030 Cisco Vision Dynamic Signage Director Directory Traversal Information Disclosure Vulnerability CVSS 3.1MEDIUM 5.3
- TI-2021-13741 Cisco Vision Dynamic Signage Director Reflected Cross-Site Scripting Vulnerability CVSS 3.1MEDIUM 6.1
- TI-2020-03031 Cisco Vision Dynamic Signage Director Role-Based Access Control Vulnerability CVSS 3.1MEDIUM 6.3
Sources
- CVE-2020-3491 · CVE Program
- CVE-2020-3491 · NVD
- FIRST EPSS
- GHSA-vxm5-p34v-5xv5 · 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