FKIE_CVE-2026-12165

Vulnerability from fkie_nvd - Published: 2026-06-17 13:19 - Updated: 2026-06-17 14:44
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
The Contest Gallery – Upload & Vote Photos, Media, Sell with PayPal & Stripe plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 30.0.2 via the `RegistryUserRole` parameter. This is due to the plugin's admin menu being registered at the `edit_posts` capability level — granting Contributor-level users access to the plugin's admin pages and a valid `cg_admin` nonce — while the option-saving handler in `change-options-and-sizes.php` performs no `current_user_can()` capability check beyond `check_admin_referer('cg_admin')`, and the `RegistryUserRole` value is processed only through `sanitize_text_field()` and `htmlentities()` without restriction to an allowlist of permitted role names. This makes it possible for authenticated attackers, with author-level access and above, to overwrite the plugin's stored `RegistryUserRole` option with `administrator`, which the `cg_create_wp_user_from_google_user` function then reads back from the `contest_gal1ery_registry_and_login_options` database table without any allowlist validation and passes directly to `wp_update_user()`, effectively promoting a newly registered Google sign-in account to Administrator.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/functions/google/cg-create-wp-user-from-google-user.php#L169
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/index.php#L407
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/v10/v10-admin/options/change-options-and-sizes.php#L1242
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/v10/v10-admin/options/change-options-and-sizes.php#L16
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3571733%40contest-gallery&new=3571733%40contest-gallery&sfp_email=&sfph_mail=
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/69b909da-b1b0-4dab-916c-908511f6556f?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Contest Gallery \u2013 Upload \u0026 Vote Photos, Media, Sell with PayPal \u0026 Stripe",
          "vendor": "contest-gallery",
          "versions": [
            {
              "lessThanOrEqual": "30.0.2",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Contest Gallery \u2013 Upload \u0026 Vote Photos, Media, Sell with PayPal \u0026 Stripe plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 30.0.2 via the `RegistryUserRole` parameter. This is due to the plugin\u0027s admin menu being registered at the `edit_posts` capability level \u2014 granting Contributor-level users access to the plugin\u0027s admin pages and a valid `cg_admin` nonce \u2014 while the option-saving handler in `change-options-and-sizes.php` performs no `current_user_can()` capability check beyond `check_admin_referer(\u0027cg_admin\u0027)`, and the `RegistryUserRole` value is processed only through `sanitize_text_field()` and `htmlentities()` without restriction to an allowlist of permitted role names. This makes it possible for authenticated attackers, with author-level access and above, to overwrite the plugin\u0027s stored `RegistryUserRole` option with `administrator`, which the `cg_create_wp_user_from_google_user` function then reads back from the `contest_gal1ery_registry_and_login_options` database table without any allowlist validation and passes directly to `wp_update_user()`, effectively promoting a newly registered Google sign-in account to Administrator."
    }
  ],
  "id": "CVE-2026-12165",
  "lastModified": "2026-06-17T14:44:26.397",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "security@wordfence.com",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-12165",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-06-17T10:38:33.394545Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-06-17T13:19:57.433",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/functions/google/cg-create-wp-user-from-google-user.php#L169"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/index.php#L407"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/v10/v10-admin/options/change-options-and-sizes.php#L1242"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/contest-gallery/tags/30.0.2/v10/v10-admin/options/change-options-and-sizes.php#L16"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3571733%40contest-gallery\u0026new=3571733%40contest-gallery\u0026sfp_email=\u0026sfph_mail="
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/69b909da-b1b0-4dab-916c-908511f6556f?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Primary"
    }
  ]
}


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