Bug 1934837 (CVE-2021-22878) - CVE-2021-22878 nextcloud: Reflected cross-site scripting due to lack of sanitization in `OC.Notification.show`
Summary: CVE-2021-22878 nextcloud: Reflected cross-site scripting due to lack of sanit...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2021-22878
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1934838
Blocks:
TreeView+ depends on / blocked
 
Reported: 2021-03-03 21:15 UTC by Pedro Sampaio
Modified: 2021-03-04 01:02 UTC (History)
2 users (show)

Fixed In Version:
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Last Closed: 2021-03-04 01:02:05 UTC
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Description Pedro Sampaio 2021-03-03 21:15:29 UTC 
Nextcloud Server prior to 20.0.6 is vulnerable to reflected cross-site scripting (XSS) due to lack of sanitization in `OC.Notification.show`.

https://github.com/nextcloud/server/pull/25234
https://hackerone.com/reports/896522
https://nextcloud.com/security/advisory/?id=NC-SA-2021-005
Comment 1 Pedro Sampaio 2021-03-03 21:15:50 UTC 
Created nextcloud tracking bugs for this issue:

Affects: fedora-all [bug 1934838]
Comment 2 Product Security DevOps Team 2021-03-04 01:02:05 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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