CVE-2020-8122: Input Validation
First published: Tue Feb 04 2020(Updated: )
A missing check in Nextcloud Server 14.0.3 could give recipient the possibility to extend the expiration date of a share they received.
Credit: support@hackerone.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Nextcloud Server | <12.0.13 | |
| Nextcloud Server | >=13.0.0<13.0.8 | |
| Nextcloud Server | >=14.0.0<14.0.4 | |
| Nextcloud Server | >=14.0.5<15.0.0 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2020-8122?
CVE-2020-8122 is considered a medium severity vulnerability due to the potential for unauthorized expiration date manipulation.
How do I fix CVE-2020-8122?
To fix CVE-2020-8122, upgrade your Nextcloud Server to version 14.0.4 or later, or to versions 13.0.8 and below 14.0.0.
What impact does CVE-2020-8122 have on Nextcloud Server?
CVE-2020-8122 allows a recipient of a shared file to extend the expiration date of their share without permission from the sender.
Is my version of Nextcloud Server vulnerable to CVE-2020-8122?
If you are using Nextcloud Server versions below 14.0.4, between 13.0.0 and 13.0.8, or between 14.0.0 and 14.0.5, you are vulnerable to CVE-2020-8122.
Who is affected by CVE-2020-8122?
Any user of Nextcloud Server versions that fall within the specified vulnerable ranges is at risk of exploitation from CVE-2020-8122.
- agent/references
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/severity
- agent/weakness
- agent/author
- agent/description
- agent/event
- agent/first-publish-date
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/nextcloud
- canonical/nextcloud server
- version/nextcloud server/13.0.0
- version/nextcloud server/14.0.0
- version/nextcloud server/14.0.5