Nextcloud: Security Vulnerabilities
Nextcloud Server prior to 20.0.0 stores passwords in a recoverable format even when external storage is not configured.
CVSS Score
6.7
EPSS Score
0.002
Published
2021-03-03
Nextcloud Deck before 1.0.2 suffers from an insecure direct object reference (IDOR) vulnerability that permits users with a duplicate user identifier to access deck data of a previous deleted user.
CVSS Score
4.3
EPSS Score
0.002
Published
2021-02-23
A missing link validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows execution of a stored XSS attack using Internet Explorer when saving a 'javascript:' URL in markdown format.
CVSS Score
5.4
EPSS Score
0.004
Published
2021-02-03
A missing input validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows users to store unlimited data in workflow rules causing load and potential DDoS on later interactions and usage with those rules.
CVSS Score
6.5
EPSS Score
0.012
Published
2021-01-26
A wrong check in Nextcloud Server 19 and prior allowed to perform a denial of service attack when resetting the password for a user.
CVSS Score
7.5
EPSS Score
0.005
Published
2021-01-26
A missing file type check in Nextcloud Contacts 3.4.0 allows a malicious user to upload SVG files as PNG files to perform cross-site scripting (XSS) attacks.
CVSS Score
5.4
EPSS Score
0.002
Published
2021-01-06
A missing file type check in Nextcloud Contacts 3.3.0 allows a malicious user to upload malicious SVG files to perform cross-site scripting (XSS) attacks.
CVSS Score
5.4
EPSS Score
0.002
Published
2021-01-06
Improper access control in Nextcloud Social app version 0.3.1 allowed to read posts of any user.
CVSS Score
5.3
EPSS Score
0.002
Published
2020-11-19
Missing validation of server certificates for out-going connections in Nextcloud Social < 0.4.0 allowed a man-in-the-middle attack.
CVSS Score
7.4
EPSS Score
0.001
Published
2020-11-19
Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the public key to decrypt them later on.
CVSS Score
4.4
EPSS Score
0.001
Published
2020-11-16