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Vulnerability record · CVE-2020-3491 · published 26 August 2020

CVE-2020-3491: Cisco vision dynamic signage director cross-site scripting vulnerability

Cisco · Vision Dynamic Signage Director

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.

4.8 CVSS 3.1 Medium EPSS 0.62% · top 52.5% CWE-79 · Cross-site scripting
4.8CVSS 3.1 base score, v2 3.5
0.62%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cvdsd-xss-teMmLyUr Vendor Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cvdsd-xss-teMmLyUr Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2019-1917Cisco vision dynamic signage director improper authentication vulnerabilityA vulnerability in the REST API interface of Cisco Vision Dynamic Signage Director could allow an unauthenticated, remote attacker to bypass authenti…EPSS 5.3%6.5CVE-2020-3598Cisco vision dynamic signage director missing authentication for critical function vulnerabilityA vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an unauthenticated, remote attacker to acc…EPSS 0.95%6.5CVE-2019-16004Cisco vision dynamic signage director missing authentication for critical function vulnerabilityA vulnerability in the REST API endpoint of Cisco Vision Dynamic Signage Director could allow an unauthenticated, remote attacker to bypass authentic…EPSS 1.0%6.3CVE-2020-3485Cisco vision dynamic signage director permissions and access controls vulnerabilityA vulnerability in the role-based access control (RBAC) functionality of the web management software of Cisco Vision Dynamic Signage Director could a…EPSS 0.68%6.1CVE-2021-34742Cisco vision dynamic signage director cross-site scripting vulnerabilityA vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an unauthenticated, remote attacker to con…EPSS 0.77%5.3CVE-2020-3484Cisco vision dynamic signage director incorrect default permissions vulnerabilityA vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an unauthenticated, remote attacker to vie…EPSS 1.1%4.9CVE-2020-3490Cisco vision dynamic signage director path traversal vulnerabilityA vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an authenticated, remote attacker with adm…EPSS 3.0%4.9CVE-2020-3450Cisco vision dynamic signage director sql injection vulnerabilityA vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an authenticated, remote attacker with adm…EPSS 1.0%

Source: NIST National Vulnerability Database (record CVE-2020-3491), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.