CVE-2020-8228
A missing rate limit in the Preferred Providers app 1.7.0 allowed an attacker to set the password...
A missing rate limit in the Preferred Providers app 1.7.0 allowed an attacker to set the password an uncontrolled amount of times.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Exploit likelihood
What each source reports
NVD Score used
5.3
A missing rate limit in the Preferred Providers app 1.7.0 allowed an attacker to set the password an uncontrolled amount of times.
- Record
CVE-2020-8228- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Weakness
- CWE-840, CWE-307
- Updated
- 2026-11-02
CVE List No score
A missing rate limit in the Preferred Providers app 1.7.0 allowed an attacker to set the password an uncontrolled amount of times.
- Record
CVE-2020-8228- Weakness
- CWE-840
- Updated
- 2026-11-02
EUVDEUVD-2020-29100 No score
A missing rate limit in the Preferred Providers app 1.7.0 allowed an attacker to set the password an uncontrolled amount of times.
- Record
EUVD-2020-29100- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rwr6-pc6f-m2cc No score
A missing rate limit in the Preferred Providers app 1.7.0 allowed an attacker to set the password...
A missing rate limit in the Preferred Providers app 1.7.0 allowed an attacker to set the password an uncontrolled amount of times.
- Record
GHSA-rwr6-pc6f-m2cc- Updated
- 2026-11-02
OSV
5.3
A missing rate limit in the Preferred Providers app 1.7.0 allowed an attacker to set the password an uncontrolled amount of times.
- Record
CVE-2020-8228- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - Updated
- 2026-11-02
OSVopenSUSE-SU-2020:1652-1 No score
Security update for nextcloud
This update for nextcloud fixes the following issues:
nextcloud version 20.0.0 fix some security issues:
-
NC-SA-2020-037 PIN for passwordless WebAuthm is asked for but not verified
-
NC-SA-2020-033 (CVE-2020-8228) Missing rate limit on signup page
-
NC-SA-2020-029 (CVE-2020-8233, boo#1177346) Re-Sharing allows increase of privileges
-
NC-SA-2020-026 Passowrd of share by mail is not hashed when given on the create share call
-
NC-SA-2020-023 Increase random used for encryption
-
Update to 19.0.3
- Fix possible leaking scope in Flow (server#22410)
- Combine body-login rules in theming and fix twofactor and guest styling on bright colors (server#22427)
- Show better quota warning for group folders and external storage (server#22442)
- Add php docs build script (server#22448)
- Fix clicks on actions menu of non opaque file rows in acceptance tests (server#22503)
- Fix writing BLOBs to postgres with recent contacts interaction (server#22515)
- Set the mount id before calling storage wrapper (server#22519)
- Fix S3 error handling (server#22521)
- Only disable zip64 if the size is known (server#22537)
- Change free space calculation (server#22553)
- Do not keep the part file if the forbidden exception has no retry set (server#22560)
- Fix app password updating out of bounds (server#22569)
- Use the correct root to determinate the webroot for the resource (server#22579)
- Upgrade icewind/smb to 3.2.7 (server#22581)
- Bump elliptic from 6.4.1 to 6.5.3 (notifications#732)
- Fixes regression that prevented you from toggling the encryption flag (privacy#489)
- Match any non-whitespace character in filesystem pattern (serverinfo#229)
- Catch StorageNotAvailable exceptions (text#1001)
- Harden read only check on public endpoints (text#1017)
- Harden check when using token from memcache (text#1020)
- Sessionid is an int (text#1029)
- Only overwrite Ctrl-f when text is focussed (text#990)
- Set the X-Requested-With header on dav requests (viewer#582)
-
Update to 19.0.2
- [stable19] lower minimum search length to 2 characters (server#21782)
- [stable19] Call openssl_pkey_export with $config and log errors. (server#21804)
- [stable19] Improve error reporting on sharing errors (server#21806)
- [stable19] Do not log RequestedRangeNotSatisfiable exceptions in DAV (server#21840)
- [stable19] Fix parsing of language code (server#21857)
- [stable19] fix typo in revokeShare() (server#21876)
- [stable19] Discourage webauthn user interaction (server#21917)
- [stable19] Encryption is ready if master key is enabled (server#21935)
- [stable19] Disable fragile comments tests (server#21939)
- [stable19] Do not double encode the userid in webauthn login (server#21953)
- [stable19] update icewind/smb to 3.2.6 (server#21955)
- [stable19] Respect default share permissions (server#21967)
- [stable19] allow admin to configure the max trashbin size (server#21975)
- [stable19] Fix risky test in twofactor_backupcodes (server#21978)
- [stable19] Fix PHPUnit deprecation warnings (server#21981)
- [stable19] fix moving files from external storage to object store trashbin (server#21983)
- [stable19] Ignore whitespace in sharing by mail (server#21991)
- [stable19] Properly fetch translation for remote wipe confirmation dialog (server#22036)
- [stable19] parse_url returns null in case a parameter is not found (server#22044)
- Bump elliptic from 6.5.2 to 6.5.3 (server#22050)
- [stable19] Correctly remove usergroup shares on removing group members (server#22053)
- [stable19] Fix height to big for iPhone when using many apps (server#22064)
- [stable19] reset the cookie internally in new API when abandoning paged results op (server#22069)
- [stable19] Add Guzzle's InvalidArgumentException (server#22070)
- [stable19] contactsmanager shall limit number of results early (server#22091)
- [stable19] Fix browser freeze on long password input…
- Record
openSUSE-SU-2020:1652-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
nextcloudSUSE:Package Hub 12 From an advisory covering 5 CVEs |
before 20.0.0-bp152.2.3.1 | 20.0.0-bp152.2.3.1 |
nextcloudSUSE:Package Hub 15 SP1 From an advisory covering 5 CVEs |
before 20.0.0-bp152.2.3.1 | 20.0.0-bp152.2.3.1 |
nextcloudSUSE:Package Hub 15 SP2 From an advisory covering 5 CVEs |
before 20.0.0-bp152.2.3.1 | 20.0.0-bp152.2.3.1 |
nextcloudopenSUSE:Leap 15.1 From an advisory covering 5 CVEs |
before 20.0.0-bp152.2.3.1 | 20.0.0-bp152.2.3.1 |
nextcloudopenSUSE:Leap 15.2 From an advisory covering 5 CVEs |
before 20.0.0-bp152.2.3.1 | 20.0.0-bp152.2.3.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-8228 is a medium vulnerability (CVSS 5.3) in Nextcloud Preferred Providers, published October 5, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.91%, the 79th percentile. No source names a fixed version.
References
hackerone.com/reports/922470
nextcloud.com/security/advisory?id=NC-SA-2020-033
lists.opensuse.org/opensuse-security-announce/2020-10/msg00019.html
nvd.nist.gov/vuln/detail/CVE-2020-8228
github.com/advisories/GHSA-rwr6-pc6f-m2cc
lists.opensuse.org/archives/list/[email protected]/thread/WWBOJYWMDZM3KUZWE3WE7OUUHDQ6Z7BX
Left out here: the rest of 1 source description. The JSON record has them.