CVE-2021-37859 Reflected XSS in OAuth Flow

2021-08-0519:40:10

CWE-79

Mattermost

www.cve.org

7.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

LOW

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

0.001 Low

EPSS

Percentile

31.7%

JSON

Fixed a bypass for a reflected cross-site scripting vulnerability affecting OAuth-enabled instances of Mattermost.

CNA Affected

[
  {
    "product": "Mattermost ",
    "vendor": "Mattermost ",
    "versions": [
      {
        "status": "unaffected",
        "version": "5.34.5"
      },
      {
        "status": "unaffected",
        "version": "5.35.4"
      },
      {
        "lessThanOrEqual": "5.36.0",
        "status": "affected",
        "version": "5.32.0",
        "versionType": "custom"
      }
    ]
  }
]