NextcloudGHSA-WGPW-QQQ2-GWV6HTML injection in search UI when selecting a circle with HTML in the display name
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
AI Score
Confidence
High
EPSS
Percentile
20.0%
Description
Impact
An attacker could insert links into circles name that would be opened when clicking the circle name in a search filter.
Patches
It is recommended that the Nextcloud Server is upgraded to 25.0.13, 26.0.8 or 27.1.3
It is recommended that the Nextcloud Enterprise Server is upgraded to 25.0.13, 26.0.8 or 27.1.3
Workarounds
- Disable app circles
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
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
AI Score
Confidence
High
EPSS
Percentile
20.0%