SB2021102613 - Privilege escalation in Nextcloud Deck
Published: October 26, 2021
Security Bulletin ID
SB2021102613
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Authorization bypass through user-controlled key (CVE-ID: CVE-2021-39225)
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to a missing permission check. A remote authenticated attacker can access Deck cards of another user.
Remediation
Install update from vendor's website.