CVE-2021-1358
mediumpriority · track · 24EPSS 0.008 · 56 %ileEURUUSEPSS · scored 2026-10-27
A vulnerability in the web-based management interface of Cisco Finesse could allow an unauthenticated, remote attacker to redirect a user to an undesired web page. This vulnerability is due to improper input validation of the URL parameters in an HTTP request that is sent to an affected system. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to cause the interface to redirect the user to a specific, malicious URL. This type of vulnerability is known as an open redirect and is used in phishing attacks that get users to unknowingly visit malicious sites.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedCisco Finessecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Packaged Contact Center Enterprisecisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Unified Contact Center Expresscisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (6)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- cisco-sa-finesse-opn-rdrct-epDeh7RCisco Finesse Open Redirect Vulnerability2021-05-19csaf · cisco_csafUS
A vulnerability in the web-based management interface of Cisco Finesse could allow an unauthenticated, remote attacker to redirect a user to an undesired web page. This vulnerability is due to improper input validation of the URL parameters in an HTTP request that is sent to an affected system. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to cause the interface to redirect the user to a specific, malicious URL. This type of vulnerability is known as an open redirect and is used in phishing attacks that get users to unknowingly visit malicious sites. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-finesse-opn-rdrct-epDeh7R ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-finesse-opn-rdrct-epDeh7R"]
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-finesse-opn-rdrct-epDeh7Rcnnvd
- https://vigilance.fr/vulnerability/Cisco-Unified-CCX-open-redirect-via-Finesse-35488cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.1746cnnvd
- https://www.cybersecurity-help.cz/vdb/SB2021052011cnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-finesse-opn-rdrct-epDeh7Renisa_euvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-finesse-opn-rdrct-epDeh7RVendor Advisorynvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan