VDB
CVE-2020-8294
CVE-2020-8294
PUBLISHED
CVSS 5.400000095367432 MEDIUM
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.
EPSS 0.39% · 60.5th percentile
Risk Scores
CVSS 3.1
5.400000095367432
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS Score
0.39%
60.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| nextcloud | nextcloud_server | 0, 19.0.0, 20.0.0 |
| n/a | Nextcloud Server | 20.0.2 |
Exploit Intelligence
- https://hackerone.com/reports/1023787 (nist-nvd)
- Stored XSS in markdown file with Nextcloud Talk using Internet Explorer (hackerone)
- Stored XSS in markdown file with Nextcloud Talk using Internet Explorer (hackerone)
- Stored XSS in markdown file with Nextcloud Talk using Internet Explorer (hackerone)
- https://nextcloud.com/security/advisory/?id=NC-SA-2021-002 (circl)
Timeline
- CVE Published
- Feb 19, 2021 PoC Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score