CVE-2021-22878

2021-03-0317:39:51

CWE-79

hackerone

www.cve.org

6.1 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

36.1%

JSON

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

CNA Affected

[
  {
    "product": "Nextcloud Server",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Fixed in 20.0.6"
      }
    ]
  }
]

References

github.com/nextcloud/server/pull/25234

hackerone.com/reports/896522

lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/

nextcloud.com/security/advisory/?id=NC-SA-2021-005