NextcloudGHSA-H4XV-CJPM-J595Events information leaked with shared calendars on recurrence exceptions
3.5 Low
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
6.5 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
15.5%
Description
Impact
Private shared calendar events’ recurrence exceptions can be read by sharees.
Patches
It is recommended that the Nextcloud Server is upgraded to 27.1.10 or 28.0.6 or 29.0.1
It is recommended that the Nextcloud Enterprise Server is upgraded to 27.1.10 or 28.0.6 or 29.0.1
Workarounds
- No workaround available
References
For more information
If you have any questions or comments about this advisory:
- Create a post in nextcloud/security-advisories
- Customers: Open a support ticket at portal.nextcloud.com
Related
3.5 Low
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
6.5 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
15.5%