Information disclosure in Nextcloud Mail - CVE-2021-32707
Published: July 12, 2021
Vulnerability identifier: #VU54666
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-32707
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to the affected application does by default not render images in emails to not leak the read state. A remote attacker can gain unauthorized access to sensitive information on the system.
Affected software
Nextcloud Mail
Arch Linux
Arch Linux
How to mitigate CVE-2021-32707
Install updates from vendor's website.
Nextcloud Mail - addressed in versions 1.9.6, 1.10.0