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CVE-2026-120550

Full vulnerability record from the local CVENow database.

Description

The WP User Manager – Registration Form, Login Form, User Profile Builder & Member Directory plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'name (REST users endpoint) -> wp_users.display_name' parameter in all versions up to, and including, 2.10.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload is stored via the WordPress core REST endpoint POST /wp-json/wp/v2/users/me, which bypasses the plugin's own wpum_sanitize_text sanitizer applied on its front-end account form, making the save-time sanitization ineffective as a mitigation.

Severity
MEDIUM
CVSS score
6.4 (v3.1)
Vulnerability status
Deferred
Source identifier
Published
2026-11-06 10:16:37.047000
Last modified
2026-11-06 10:16:37.177000
View original CVE JSON
{
  "id": "CVE-2026-120550",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-06T10:16:37.047",
  "lastModified": "2026-11-06T10:16:37.177",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The WP User Manager – Registration Form, Login Form, User Profile Builder & Member Directory plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'name (REST users endpoint) -> wp_users.display_name' parameter in all versions up to, and including, 2.10.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The payload is stored via the WordPress core REST endpoint POST /wp-json/wp/v2/users/me, which bypasses the plugin's own wpum_sanitize_text sanitizer applied on its front-end account form, making the save-time sanitization ineffective as a mitigation."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "wpusermanager",
          "product": "WP User Manager – Registration Form, Login Form, User Profile Builder & Member Directory",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "lessThanOrEqual": "2.10.2",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
          "baseScore": 6.4,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 2.7
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://downloads.wordpress.org/plugin/wp-user-manager.2.10.3.zip",
      "source": "[email protected]"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/wp-user-manager/tags/2.10.2/includes/fields/class-wpum-field.php#L627",
      "source": "[email protected]"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/wp-user-manager/tags/2.10.2/includes/fields/types/class-wpum-field-dropdown.php#L60",
      "source": "[email protected]"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/wp-user-manager/tags/2.10.2/includes/fields/wpum-fields-functions.php#L578",
      "source": "[email protected]"
    },
    {
      "url": "https://plugins.trac.wordpress.org/browser/wp-user-manager/tags/2.10.2/templates/profiles/about.php#L51",
      "source": "[email protected]"
    },
    {
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/3e9da4a7-89ba-426c-943a-e7bc79a04d7c?source=cve",
      "source": "[email protected]"
    }
  ]
}