synced 11 MIN AGO
01 Record

CVE-2025-66510

Nextcloud Server Contacts Search allowed users to retrieve contact information of other users beyond their contact list

MediumPUBLISHEDCNA: GitHub_M
CNA base score4.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
View raw JSON

02 Description

Nextcloud Server Contacts Search allowed users to retrieve contact information of other users beyond their contact list

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.35% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 29.2% of scored records. A rank, not a probability.
NVD base score
4.9 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-18.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-12-05 16:18Z10 MO AGO
Last updated
2025-12-05 20:02Z10 MO AGO
Reserved
2025-12-03
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Medium (CVSS 4.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N
Weaknesses
  • CWE-359Exposure of Private Personal Information to an Unauthorized ActorBase
Data version
5.2
Document digest
39ddcceb93c5637ac745cd9047ce9114f3b5fb9a9af87a012e38db577ef836d7

05 Affected products

VendorProductVersionsPlatforms
nextcloudsecurity-advisories>= 32.0.0beta1, < 32.0.1, < 31.0.10—

06 References