CVE-2022-39331

MEDIUM

Nextcloud Desktop < 3.6.1 - Stored Cross-Site Scripting in Notification Renderer

Title source: llm

Description

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

References (4)

Core 4

Core References

Mailing List

https://lists.debian.org/debian-lts-announce/2025/09/msg00018.html

Patch, Third Party Advisory

https://github.com/nextcloud/desktop/pull/4944

Third Party Advisory

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-c3xh-q694-6rc5

Exploit, Third Party Advisory

https://hackerone.com/reports/1668028

Scores

CVSS v3 4.6

EPSS 0.0047

EPSS Percentile 64.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (1)

nextcloud/desktop < 3.6.1

Published Nov 25, 2022

Tracked Since Feb 18, 2026