CVE-2022-23552 Grafana stored XSS in FileUploader component

2023-01-2722:59:16

CWE-79

GitHub_M

www.cve.org

grafana

stored xss

vulnerability

fileuploader

geomap

svg

javascript

privilege escalation

upgrade

7.3 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

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

7.6 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.9%

JSON

Grafana is an open-source platform for monitoring and observability. Starting with the 8.1 branch and prior to versions 8.5.16, 9.2.10, and 9.3.4, Grafana had a stored XSS vulnerability affecting the core plugin GeoMap. The stored XSS vulnerability was possible because SVG files weren’t properly sanitized and allowed arbitrary JavaScript to be executed in the context of the currently authorized user of the Grafana instance.

An attacker needs to have the Editor role in order to change a panel to include either an external URL to a SVG-file containing JavaScript, or use the data: scheme to load an inline SVG-file containing JavaScript. This means that vertical privilege escalation is possible, where a user with Editor role can change to a known password for a user having Admin role if the user with Admin role executes malicious JavaScript viewing a dashboard.

Users may upgrade to version 8.5.16, 9.2.10, or 9.3.4 to receive a fix.

CNA Affected

[
  {
    "vendor": "grafana",
    "product": "grafana",
    "versions": [
      {
        "version": ">= 9.0, < 9.2.10",
        "status": "affected"
      },
      {
        "version": ">= 9.3, < 9.3.4",
        "status": "affected"
      },
      {
        "version": ">= 8.1, < 8.5.16",
        "status": "affected"
      }
    ]
  }
]