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CVE

CVE-2024-37882

Nextcloud Server is a self hosted personal cloud system. A recipient of a share with read&share permissions could reshar

Nextcloud Server is a self hosted personal cloud system. A recipient of a share with read&share permissions could reshare the item with more permissions. It is recommended that the Nextcloud Server is upgraded to 26.0.13 or 27.1.8 or 28.0.4 and that the Nextcloud Enterprise Server is upgraded to 26.0.13 or 27.1.8 or 28.0.4.

HIGH · CVSS 8.1 EPSS 0.00319
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-281Improper Preservation of Permissions
CWE-284Improper Access Control
▤

Affected Products & Versions

6
nextcloud server>= 26.0.0 and < 26.0.13
nextcloud server>= 27.0.0 and < 27.1.8
nextcloud server>= 28.0.0 and < 28.0.4
nextcloud server>= 23.0.0 and < 23.0.12.17
nextcloud server>= 24.0.0 and < 24.0.12.13
nextcloud server>= 25.0.0 and < 25.0.13.8
▣

Scoring & Timeline

8.1
HIGH · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Jun 2024 · 04:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-jjm3-j9xh-5xmqVendor Advisory
https://github.com/nextcloud/server/pull/44339Patch
https://hackerone.com/reports/2289425Issue Tracking
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