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CVE-2025-66545

16
FAUCET Score

CVE-2025-66545 is a medium-severity vulnerability affecting Nextcloud Groupfolders versions prior to 14.0.11, 15.3.12, 16.0.15, 17.0.14, 18.1.8, 19.1.8, and 20.1.2. It allows a user with read-only permissions to restore files from the trash bin, leading to an integrity impact. The CVSS score is 4.3 (MEDIUM), indicating a network attack vector with low attack complexity and low privileges required, resulting in a low impact on integrity. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 14.0.11CPE matchmatch criteria
cpe:2.3:a:nextcloud:group_folders:*:*:*:*:*:*:*:*
>= 15.0.0, < 15.3.12CPE matchmatch criteria
cpe:2.3:a:nextcloud:group_folders:*:*:*:*:*:*:*:*
>= 16.0.0, < 16.0.15CPE matchmatch criteria
cpe:2.3:a:nextcloud:group_folders:*:*:*:*:*:*:*:*
>= 17.0.0, < 17.0.14CPE matchmatch criteria
cpe:2.3:a:nextcloud:group_folders:*:*:*:*:*:*:*:*
>= 18.0.0, < 18.1.8CPE matchmatch criteria
cpe:2.3:a:nextcloud:group_folders:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.5LOW

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.1
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
15.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 18th percentile among its peer group of 21,957 CVEs.

Social Chatter

No social media mentions found for this CVE.

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 0.0 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

github.com / nextcloud/groupfolders/commit/bbe87ebed8da23e9df4db637a76fbc8d36439d58
Patch
github.com / nextcloud/groupfolders/issues/4041
Issue Tracking
github.com / nextcloud/groupfolders/pull/4076
Issue TrackingPatch
github.com / nextcloud/security-advisories/security/advisories/GHSA-2vrq-fhmf-c49m
PatchVendor Advisory