PT-2022-24904 · Nextcloud+2 · Nextcloud Desktop Client+2

B911Bade858Ce8E6A0F50F8 · Published 2022-11-25 · Updated 2025-09-18 · CVE-2022-39331

Positive Technologies (AI Summary)

CVSS v3.1

4.6

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Nextcloud Desktop client versions prior to 3.6.1

Description An attacker can inject arbitrary HyperText Markup Language into the Desktop Client application in the notifications. There are no known workarounds for this issue.

Recommendations For versions prior to 3.6.1, upgrade the Nextcloud Desktop client to 3.6.1 to resolve the issue. As a temporary workaround, consider restricting the display of notifications in the Desktop Client application until the upgrade is applied.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

ALT-PU-2023-2019

ALT-PU-2023-4584

ALT-PU-2023-5197

CVE-2022-39331

DLA-4303-1

GHSA-C3XH-Q694-6RC5

OPENSUSE-SU-2023:0090-1

OPENSUSE-SU-2023:0171-1

Affected Products

Alt Linux

Debian

Nextcloud Desktop Client

References · 29

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39331.json · Exploit
• 🔥 https://hackerone.com/reports/1668028 · Exploit
• https://github.com/nextcloud/desktop/pull/4944 · Patch
• https://osv.dev/vulnerability/CVE-2022-39331 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-4303-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-39331 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-39331 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2023:0090-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-39331 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-39331 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2023:0171-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-39331 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-39331 · Vendor Advisory
• https://github.com/nextcloud/security-advisories/security/advisories/GHSA-c3xh-q694-6rc5 · Note
• https://bugzilla.suse.com/1205799 · Note