FKIE_CVE-2026-4979

Vulnerability from fkie_nvd - Published: 2026-04-11 02:16 - Updated: 2026-04-24 18:00
Severity ?
5.0 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Summary
The UsersWP – Front-end login form, User Registration, User Profile & Members Directory plugin for WP plugin for WordPress is vulnerable to blind Server-Side Request Forgery in all versions up to, and including, 1.2.58. This is due to insufficient URL origin validation in the process_image_crop() method when processing avatar/banner image crop operations. The function accepts a user-controlled URL via the uwp_crop POST parameter and only validates it using esc_url() for sanitization and wp_check_filetype() for extension verification, without enforcing that the URL references a local uploads file. The URL is then passed to uwp_resizeThumbnailImage() which uses it in PHP image processing functions (getimagesize(), imagecreatefrom*()) that support URL wrappers and perform outbound HTTP requests. This makes it possible for authenticated attackers with subscriber-level access and above to coerce the WordPress server into making arbitrary HTTP requests to attacker-controlled or internal network destinations, enabling internal network scanning and potential access to sensitive services.
References
security@wordfence.comhttps://github.com/AyeCode/userswp/commit/ca0c81b9c76a26c5ac78a8f3604cf9122a7a4aa1
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/userswp/tags/1.2.55/includes/class-forms.php#L198
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/userswp/tags/1.2.55/includes/helpers/misc.php#L136
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/userswp/trunk/includes/class-forms.php#L198
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/userswp/trunk/includes/helpers/misc.php#L136
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/9cd2b3fd-1bca-4611-9753-ccb57b0e36a4?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The UsersWP \u2013 Front-end login form, User Registration, User Profile \u0026 Members Directory plugin for WP plugin for WordPress is vulnerable to blind Server-Side Request Forgery in all versions up to, and including, 1.2.58. This is due to insufficient URL origin validation in the process_image_crop() method when processing avatar/banner image crop operations. The function accepts a user-controlled URL via the uwp_crop POST parameter and only validates it using esc_url() for sanitization and wp_check_filetype() for extension verification, without enforcing that the URL references a local uploads file. The URL is then passed to uwp_resizeThumbnailImage() which uses it in PHP image processing functions (getimagesize(), imagecreatefrom*()) that support URL wrappers and perform outbound HTTP requests. This makes it possible for authenticated attackers with subscriber-level access and above to coerce the WordPress server into making arbitrary HTTP requests to attacker-controlled or internal network destinations, enabling internal network scanning and potential access to sensitive services."
    }
  ],
  "id": "CVE-2026-4979",
  "lastModified": "2026-04-24T18:00:32.033",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 1.4,
        "source": "security@wordfence.com",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-04-11T02:16:02.463",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://github.com/AyeCode/userswp/commit/ca0c81b9c76a26c5ac78a8f3604cf9122a7a4aa1"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.55/includes/class-forms.php#L198"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/userswp/tags/1.2.55/includes/helpers/misc.php#L136"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/userswp/trunk/includes/class-forms.php#L198"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/userswp/trunk/includes/helpers/misc.php#L136"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/9cd2b3fd-1bca-4611-9753-ccb57b0e36a4?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Primary"
    }
  ]
}


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