CVE-2021-29438 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in @nextcloud/dialogs

2021-04-1318:40:15

CWE-80

CWE-79

GitHub_M

www.cve.org

4.6 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

0.001 Low

EPSS

Percentile

22.9%

JSON

The Nextcloud dialogs library (npm package @nextcloud/dialogs) before 3.1.2 insufficiently escaped text input passed to a toast. If your application displays toasts with user-supplied input, this could lead to a XSS vulnerability. The vulnerability has been patched in version 3.1.2 If you need to display HTML in the toast, explicitly pass the options.isHTML config flag.

CNA Affected

[
  {
    "product": "nextcloud-dialogs",
    "vendor": "nextcloud",
    "versions": [
      {
        "status": "affected",
        "version": "< 3.1.2"
      }
    ]
  }
]