Arbitrary HTML Injection (XSS) in Nextcloud Desktop Client (<3.6.1)
CVE-2022-39333 Published on November 25, 2022

Cross-site scripting (XSS) in Nextcloud Desktop Client
Nexcloud desktop is the Desktop sync client for Nextcloud. An attacker can inject arbitrary HyperText Markup Language into the Desktop Client application. It is recommended that the Nextcloud Desktop client is upgraded to 3.6.1. There are no known workarounds for this issue.

NVD

Vulnerability Analysis

CVE-2022-39333 can be exploited with network access, requires user interaction and a small amount of user privileges. This vulnerability is considered to have a low attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2022-39333. 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:
LOW
User Interaction:
REQUIRED
Scope:
UNCHANGED
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-2022-39333 has been classified to as a XSS vulnerability or weakness.


Products Associated with CVE-2022-39333

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Nextcloud Desktop
 

Affected Versions

nextcloud security-advisories Version < 3.6.1 is affected by CVE-2022-39333

Exploit Probability

EPSS
0.35%
Percentile
56.70%

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.