Nextcloud · Collectives · CVE-2026-77166
**Name of the Vulnerable Software and Affected Versions**
The product name cannot be determined (affected versions not specified)
**Description**
Insufficient validation of user input in the emoji field of the page emoji update endpoint allows an attacker to inject long text and line breaks. This action disrupts the sidebar layout, potentially hiding other interface items.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.