CVE-2023-35075 HTML injection via channel autocomplete

2023-11-2709:09:19

CWE-74

Mattermost

www.cve.org

mattermost

html injection

channel autocomplete

cve-2023-35075

innertext

textcontent

webapp

xss

3.1 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

0.0004 Low

EPSS

Percentile

14.2%

JSON

Mattermost fails to use innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim’s page by create a channel name that is valid HTML. No XSS is possible though.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Mattermost",
    "vendor": "Mattermost",
    "versions": [
      {
        "lessThanOrEqual": "8.1.3",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "7.8.12",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "7.8.13"
      },
      {
        "status": "unaffected",
        "version": "8.1.4"
      }
    ]
  }
]