CVE-2021-34731 is a vulnerability in Cisco Prime Access Registrar

Cisco Prime Access Registrar Stored Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco Prime Access Registrar could allow an authenticated, remote attacker to perform a stored cross-site scripting attack on an affected system. This vulnerability exists because the web-based management interface does not sufficiently validate user-supplied input. An attacker could exploit this vulnerability by injecting malicious code into specific pages of the interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information. To exploit this vulnerability, the attacker would need valid administrative credentials. Cisco expects to release software updates that address this vulnerability.

Vulnerability Analysis

CVE-2021-34731 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.

Attack Vector:

NETWORK

Attack Complexity:

LOW

Privileges Required:

HIGH

User Interaction:

REQUIRED

Scope:

CHANGED

Confidentiality Impact:

LOW

Integrity Impact:

LOW

Availability Impact:

NONE

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-2021-34731 has been classified to as a XSS vulnerability or weakness.

Products Associated with CVE-2021-34731

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Affected Versions

Exploit Probability

EPSS

0.17%

Percentile

38.75%

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.