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CVE-2022-39333

22
FAUCET Score

CVE-2022-39333 is a medium-severity vulnerability affecting the Nextcloud Desktop sync client, allowing an attacker to inject arbitrary HTML. This cross-site scripting (XSS) flaw could lead to low impact on confidentiality and integrity, requiring user interaction for exploitation. While no active exploitation, public exploit code, or significant community discussion has been observed, upgrading to Nextcloud Desktop client version 3.6.1 is strongly recommended as there are no known workarounds.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.6.1CPE matchmatch criteria
cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.6MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.1
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.92%
Probability of exploitation in next 30 days
EPSS Percentile
56.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0092 is in the 68th percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

lists.debian.org / debian-lts-announce/2025/09/msg00018.html
github.com / nextcloud/desktop/pull/4972
PatchThird Party Advisory
github.com / nextcloud/security-advisories/security/advisories/GHSA-92p9-x79h-2mj8
Third Party Advisory
hackerone.com / reports/1711847
ExploitThird Party Advisory