medium4.8
CVE-2021-22878
Nextcloud Server prior to 20.0.6 is vulnerable to reflected cross-site scripting (XSS) due to lack of sanitization in `OC.Notification.show`.
Impact
Nextcloud Server prior to 20.0.6 is vulnerable to reflected cross-site scripting (XSS) due to lack of sanitization in `OC.Notification.show`.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Nextcloud | Nextcloud Server | before 20.0.6 |
| Fedoraproject | Fedora | Version 34 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/nextcloud/server/pull/25234
- https://hackerone.com/reports/896522
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/
- https://nextcloud.com/security/advisory/?id=NC-SA-2021-005
- https://github.com/nextcloud/server/pull/25234
- https://hackerone.com/reports/896522
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/
- https://nextcloud.com/security/advisory/?id=NC-SA-2021-005