CVE-2020-8294: XSS
First published: Wed Feb 03 2021(Updated: )
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.
Credit: support@hackerone.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Nextcloud Server | <18.0.11 | |
| Nextcloud Server | >=19.0.0<19.0.5 | |
| Nextcloud Server | >=20.0.0<20.0.2 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2020-8294?
CVE-2020-8294 is classified as a medium severity vulnerability due to its potential for executing stored XSS attacks.
How do I fix CVE-2020-8294?
To fix CVE-2020-8294, update your Nextcloud Server to version 20.0.2 or later, 19.0.5 or later, or 18.0.11 or later.
Which versions are affected by CVE-2020-8294?
CVE-2020-8294 affects Nextcloud Server versions prior to 20.0.2, 19.0.5, and 18.0.11.
What type of attack does CVE-2020-8294 enable?
CVE-2020-8294 enables the execution of stored cross-site scripting (XSS) attacks using Internet Explorer.
Is CVE-2020-8294 a critical vulnerability?
No, CVE-2020-8294 is not classified as a critical vulnerability, but it can still pose risks to user data and application integrity.
- agent/references
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/last-modified-date
- agent/author
- agent/severity
- agent/first-publish-date
- agent/description
- agent/event
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/nextcloud
- canonical/nextcloud server
- version/nextcloud server/19.0.0
- version/nextcloud server/20.0.0