CVE-2021-22878 — Cross-site Scripting in Server

CWE-79 — Cross-site Scripting3 documents3 sources
Severity
4.8MEDIUMNVD
EPSS
0.4%
top 41.23%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Nextcloud ServerFedoraproject Fedora
Timeline
PublishedMar 3
Latest updateMay 24

Description

Nextcloud Server prior to 20.0.6 is vulnerable to reflected cross-site scripting (XSS) due to lack of sanitization in `OC.Notification.show`.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NExploitability: 1.7 | Impact: 2.7

Affected Packages2 packages

▶CVEListV5nextcloud/nextcloud_serverFixed in 20.0.6

Also affects: Fedora 34

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-3qm7-9jrc-h4gp: Nextcloud Server prior to 20↗2022-05-24
▶
CVEList
CVE-2021-22878: Nextcloud Server prior to 20↗2021-03-03
▶
CVE-2021-22878 — Cross-site Scripting in Server | cvebase