CVE-2024-4439

2024-05-0305:32:34

Wordfence

www.cve.org

wordpress

cross-site scripting

user display names

authentication

contributor access

7.2 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

6.3 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

20.5%

JSON

WordPress Core is vulnerable to Stored Cross-Site Scripting via user display names in the Avatar block in various versions up to 6.5.2 due to insufficient output escaping on the display name. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. In addition, it also makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that have the comment block present and display the comment author’s avatar.

CNA Affected

[
  {
    "vendor": "WordPress Foundation",
    "product": "WordPress",
    "versions": [
      {
        "version": "6.0",
        "status": "affected",
        "lessThanOrEqual": "6.0.7",
        "versionType": "semver"
      },
      {
        "version": "6.1",
        "status": "affected",
        "lessThanOrEqual": "6.1.5",
        "versionType": "semver"
      },
      {
        "version": "6.2",
        "status": "affected",
        "lessThanOrEqual": "6.2.4",
        "versionType": "semver"
      },
      {
        "version": "6.3",
        "status": "affected",
        "lessThanOrEqual": "6.3.3",
        "versionType": "semver"
      },
      {
        "version": "6.4",
        "status": "affected",
        "lessThanOrEqual": "6.4.3",
        "versionType": "semver"
      },
      {
        "version": "6.5",
        "status": "affected",
        "lessThanOrEqual": "6.5.1",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]