CVE-2021-39340 Notification – Custom Notifications and Alerts for WordPress <= 7.2.4 Authenticated Stored Cross-Site Scripting

2021-10-2500:00:00

CWE-79

Wordfence

www.cve.org

4.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

26.6%

JSON

The Notification WordPress plugin is vulnerable to Stored Cross-Site Scripting due to insufficient input validation and sanitization via several parameters found in the ~/src/classes/Utils/Settings.php file which made it possible for attackers with administrative user access to inject arbitrary web scripts, in versions up to and including 7.2.4. This affects multi-site installations where unfiltered_html is disabled for administrators, and sites where unfiltered_html is disabled.

CNA Affected

[
  {
    "product": "Notification – Custom Notifications and Alerts for WordPress",
    "vendor": "Notification – Custom Notifications and Alerts for WordPress",
    "versions": [
      {
        "lessThanOrEqual": "7.2.4",
        "status": "affected",
        "version": "7.2.4",
        "versionType": "custom"
      }
    ]
  }
]