Vulnerabilities > Nextcloud > Medium
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2021-02-23 | CVE-2020-8297 | Authorization Bypass Through User-Controlled Key vulnerability in Nextcloud Deck 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. | 4.3 |
| 2021-02-03 | CVE-2020-8294 | Cross-site Scripting vulnerability in Nextcloud Server 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. | 5.4 |
| 2021-01-26 | CVE-2020-8293 | Resource Exhaustion vulnerability in Nextcloud Server 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. | 6.5 |
| 2021-01-06 | CVE-2020-8281 | Cross-site Scripting vulnerability in Nextcloud Contacts 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. | 5.4 |
| 2021-01-06 | CVE-2020-8280 | Cross-site Scripting vulnerability in Nextcloud Contacts 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. | 5.4 |
| 2020-11-19 | CVE-2020-8278 | Incorrect Authorization vulnerability in Nextcloud Social 0.3.1 Improper access control in Nextcloud Social app version 0.3.1 allowed to read posts of any user. | 5.3 |
| 2020-11-16 | CVE-2020-8152 | Insufficiently Protected Credentials vulnerability in Nextcloud Server 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. | 4.4 |
| 2020-11-09 | CVE-2020-8150 | Missing Encryption of Sensitive Data vulnerability in Nextcloud Server A cryptographic issue in Nextcloud Server 19.0.1 allowed an attacker to downgrade the encryption scheme and break the integrity of encrypted files. | 4.1 |
| 2020-11-09 | CVE-2020-8133 | Improper Verification of Cryptographic Signature vulnerability in Nextcloud Server 19.0.1 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. | 5.3 |
| 2020-11-02 | CVE-2020-8236 | Improper Authentication vulnerability in Nextcloud Server 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. | 6.8 |