Vulnerabilities
Vulnerable Software
Nextcloud:  >> Nextcloud Server  Security Vulnerabilities
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
0.005
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
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
Insufficient protection of the server-side encryption keys in Nextcloud Server 19.0.1 allowed an attacker to replace the encryption keys.
CVSS Score
8.1
EPSS Score
0.002
Published
2020-11-16
A wrong generation of the passphrase for the encrypted block in Nextcloud Server 19.0.1 allowed an attacker to overwrite blocks in a file.
CVSS Score
5.3
EPSS Score
0.002
Published
2020-11-09
A cryptographic issue in Nextcloud Server 19.0.1 allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files.
CVSS Score
4.1
EPSS Score
0.0
Published
2020-11-09
A too small set of random characters being used for encryption in Nextcloud Server 18.0.4 allowed decryption in shorter time than intended.
CVSS Score
2.2
EPSS Score
0.003
Published
2020-11-02
A logic error in Nextcloud Server 19.0.0 caused a plaintext storage of the share password when it was given on the initial create API call.
CVSS Score
7.5
EPSS Score
0.01
Published
2020-11-02
A wrong configuration in Nextcloud Server 19.0.1 incorrectly made the user feel the passwordless WebAuthn is also a two factor verification by asking for the PIN of the passwordless WebAuthn but not verifying it.
CVSS Score
6.8
EPSS Score
0.002
Published
2020-11-02


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