#VU54169 Cross-site scripting in Cisco Systems, Inc products - CVE-2021-1395

Vulnerability identifier: #VU54169

Vulnerability risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-1395

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Unified Contact Center Enterprise
Server applications / Conferencing, Collaboration and VoIP solutions
Cisco Unified Contact Center Express
Server applications / Web servers
Cisco Packaged Contact Center Enterprise
Client/Desktop applications / Office applications
Cisco Unified Intelligence Center
Server applications / DLP, anti-spam, sniffers

Vendor: Cisco Systems, Inc

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Unified Contact Center Enterprise: before 12.5.1 SU2

Cisco Unified Contact Center Express: before 12.5.1 SU2

Cisco Packaged Contact Center Enterprise: before 12.5.1 SU2

Cisco Unified Intelligence Center: before 12.0.1 ES14

---

External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cuic-xss-csHUdtrL

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.