CVE-2026-18322 (GCVE-0-2026-18322)
Vulnerability from cvelistv5
Published
2026-08-05 04:25
Modified
2026-08-05 14:12
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-269 - Improper Privilege Management
Summary
The Smart Popup by Supsystic plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.12.0. This is due to a permission map collision in the `havePermissions()` function in `classes/frame.php`, where `array_merge()` overwrites the popup module's administrator-restricted method list with the base controller's value, silently removing `save` from protected actions; this is compounded by the subscription confirmation email embedding the same generic `pps_nonce` that the unauthenticated `wp_ajax_nopriv_save` endpoint accepts, and by the complete absence of any server-side role allowlist in `createWpSubscriber()`. This makes it possible for unauthenticated attackers to submit a crafted POST request to `admin-ajax.php` using a nonce obtained from a public subscription confirmation email, setting `params[tpl][sub_wp_create_user_role]` to `administrator` via the exposed `popupControllerPps::save()` action, and then triggering the stored confirmation flow to create a persistent WordPress Administrator account with attacker-chosen credentials.
References
Impacted products
Vendor Product Version
supsysticcom Smart Popup by Supsystic Version: 0   ≤ 1.12.0
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-18322",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-08-05T14:12:18.732279Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-08-05T14:12:28.100Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Smart Popup by Supsystic",
          "vendor": "supsysticcom",
          "versions": [
            {
              "lessThanOrEqual": "1.12.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "daroo"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Smart Popup by Supsystic plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.12.0. This is due to a permission map collision in the `havePermissions()` function in `classes/frame.php`, where `array_merge()` overwrites the popup module\u0027s administrator-restricted method list with the base controller\u0027s value, silently removing `save` from protected actions; this is compounded by the subscription confirmation email embedding the same generic `pps_nonce` that the unauthenticated `wp_ajax_nopriv_save` endpoint accepts, and by the complete absence of any server-side role allowlist in `createWpSubscriber()`. This makes it possible for unauthenticated attackers to submit a crafted POST request to `admin-ajax.php` using a nonce obtained from a public subscription confirmation email, setting `params[tpl][sub_wp_create_user_role]` to `administrator` via the exposed `popupControllerPps::save()` action, and then triggering the stored confirmation flow to create a persistent WordPress Administrator account with attacker-chosen credentials."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-269",
              "description": "CWE-269 Improper Privilege Management",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T04:25:25.641Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/835579b0-8a96-40fa-a6a3-30571a0a1d0a?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/popup-by-supsystic/tags/1.11.2/classes/frame.php#L180"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/popup-by-supsystic/tags/1.11.2/modules/subscribe/models/subscribe.php#L440"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/popup-by-supsystic/tags/1.11.2/modules/subscribe/models/subscribe.php#L292"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/popup-by-supsystic/tags/1.11.2/modules/popup/models/popup.php#L316"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/popup-by-supsystic/tags/1.11.2/modules/subscribe/models/subscribe.php#L358"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3629986%40popup-by-supsystic%2Ftrunk%2Fmodules%2Fsubscribe%2Fmodels%2Fsubscribe.php\u0026old=3628131%40popup-by-supsystic%2Ftrunk%2Fmodules%2Fsubscribe%2Fmodels%2Fsubscribe.php\u0026sfp_email=\u0026sfph_mail="
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-07-29T19:49:17.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-08-04T16:04:04.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Smart Popup by Supsystic \u003c= 1.12.0 - Unauthenticated Privilege Escalation to Administrator"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-18322",
    "datePublished": "2026-08-05T04:25:25.641Z",
    "dateReserved": "2026-07-29T19:30:22.400Z",
    "dateUpdated": "2026-08-05T14:12:28.100Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-18322\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-08-05T14:12:18.732279Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-08-05T14:12:24.340Z\"}}], \"cna\": {\"title\": \"Smart Popup by Supsystic \u003c= 1.12.0 - Unauthenticated Privilege Escalation to Administrator\", \"credits\": [{\"lang\": \"en\", \"type\": \"finder\", \"value\": \"daroo\"}], \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 8.8, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\"}}], \"affected\": [{\"vendor\": \"supsysticcom\", \"product\": \"Smart Popup by Supsystic\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"1.12.0\"}], \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-07-29T19:49:17.000Z\", \"value\": \"Vendor Notified\"}, {\"lang\": \"en\", \"time\": \"2026-08-04T16:04:04.000Z\", \"value\": \"Disclosed\"}], \"references\": [{\"url\": \"https://www.wordfence.com/threat-intel/vulnerabilities/id/835579b0-8a96-40fa-a6a3-30571a0a1d0a?source=cve\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/popup-by-supsystic/tags/1.11.2/classes/frame.php#L180\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/popup-by-supsystic/tags/1.11.2/modules/subscribe/models/subscribe.php#L440\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/popup-by-supsystic/tags/1.11.2/modules/subscribe/models/subscribe.php#L292\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/popup-by-supsystic/tags/1.11.2/modules/popup/models/popup.php#L316\"}, {\"url\": \"https://plugins.trac.wordpress.org/browser/popup-by-supsystic/tags/1.11.2/modules/subscribe/models/subscribe.php#L358\"}, {\"url\": \"https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3629986%40popup-by-supsystic%2Ftrunk%2Fmodules%2Fsubscribe%2Fmodels%2Fsubscribe.php\u0026old=3628131%40popup-by-supsystic%2Ftrunk%2Fmodules%2Fsubscribe%2Fmodels%2Fsubscribe.php\u0026sfp_email=\u0026sfph_mail=\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The Smart Popup by Supsystic plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.12.0. This is due to a permission map collision in the `havePermissions()` function in `classes/frame.php`, where `array_merge()` overwrites the popup module\u0027s administrator-restricted method list with the base controller\u0027s value, silently removing `save` from protected actions; this is compounded by the subscription confirmation email embedding the same generic `pps_nonce` that the unauthenticated `wp_ajax_nopriv_save` endpoint accepts, and by the complete absence of any server-side role allowlist in `createWpSubscriber()`. This makes it possible for unauthenticated attackers to submit a crafted POST request to `admin-ajax.php` using a nonce obtained from a public subscription confirmation email, setting `params[tpl][sub_wp_create_user_role]` to `administrator` via the exposed `popupControllerPps::save()` action, and then triggering the stored confirmation flow to create a persistent WordPress Administrator account with attacker-chosen credentials.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-269\", \"description\": \"CWE-269 Improper Privilege Management\"}]}], \"providerMetadata\": {\"orgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"shortName\": \"Wordfence\", \"dateUpdated\": \"2026-08-05T04:25:25.641Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-18322\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-08-05T14:12:28.100Z\", \"dateReserved\": \"2026-07-29T19:30:22.400Z\", \"assignerOrgId\": \"b15e7b5b-3da4-40ae-a43c-f7aa60e62599\", \"datePublished\": \"2026-08-05T04:25:25.641Z\", \"assignerShortName\": \"Wordfence\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.