CVE-2026-77166
The emoji field in the page emoji update endpoint does not properly validate user input. By injecting long text and line breaks, the sidebar layout becomes broken and can hide other items.
Published:Sep 21, 2026
Last Modified:Sep 21, 2026
EPS:Sep 21, 2026
EPSS Score:
CVSS Score:2.4
Affected Products
Vendor
Product
Action
Vendor
Nextcloud
Product
Collectives
Nextcloud
Collectives
Exploits
No exploit reference
Common Weakness Enumeration
No CWE recorded yet
Common Attack Pattern Enumeration and Classification (CAPEC)
No CAPEC recorded yet
Related CVEs
Common Vulnerability Scoring System
Attack Vector
Network
Adjacent
Local
Physical
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
