CVE-2021-1271 vulnerability in Cisco Products
Published on January 20, 2021
Cisco Web Security Appliance Stored Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface of 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 an affected interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface.
Vulnerability Analysis
CVE-2021-1271 can be exploited with network access, requires user interaction and user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2021-1271 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2021-1271
stack.watch emails you whenever new vulnerabilities are published in Cisco Web Security Virtual Appliance or Cisco Web Security Appliance. Just hit a watch button to start following.
Affected Versions
Cisco Web Security Appliance (WSA) Version n/a is affected by CVE-2021-1271Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.