FKIE_CVE-2026-8848

Vulnerability from fkie_nvd - Published: 2026-07-09 08:16 - Updated: 2026-07-09 16:19
Severity
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
The Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.22.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with editor-level access and above, to install and activate an arbitrary plugin from an attacker-controlled URL, leading to remote code execution. Exploitation requires that a valid Popup Maker Pro license is active on the target site and that Popup Maker Pro is not yet installed, as these conditions are necessary for the legacy v1/connect/info endpoint to issue the bearer token used to satisfy the install endpoint's only non-spoofable validation check.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/Controllers/RestAPI.php#L194
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L330
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L445
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L520
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/Services/Connect.php#L177
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Controllers/RestAPI.php#L194
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L330
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L445
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L520
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Services/Connect.php#L177
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset?reponame=&old=3589134%40popup-maker&new=3589134%40popup-maker
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/e05d4320-01d0-40c4-9a9a-457171ef7f5c?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Popup Maker \u2013 Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder",
          "vendor": "danieliser",
          "versions": [
            {
              "lessThanOrEqual": "1.22.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Popup Maker \u2013 Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.22.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with editor-level access and above, to install and activate an arbitrary plugin from an attacker-controlled URL, leading to remote code execution. Exploitation requires that a valid Popup Maker Pro license is active on the target site and that Popup Maker Pro is not yet installed, as these conditions are necessary for the legacy v1/connect/info endpoint to issue the bearer token used to satisfy the install endpoint\u0027s only non-spoofable validation check."
    }
  ],
  "id": "CVE-2026-8848",
  "lastModified": "2026-07-09T16:19:45.567",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.2,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 5.9,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-8848",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-07-09T12:48:58.516196Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-07-09T08:16:49.480",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/Controllers/RestAPI.php#L194"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L330"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L445"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/RestAPI/Connect.php#L520"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.21.5/classes/Services/Connect.php#L177"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Controllers/RestAPI.php#L194"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L330"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L445"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/RestAPI/Connect.php#L520"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.22.0/classes/Services/Connect.php#L177"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3589134%40popup-maker\u0026new=3589134%40popup-maker"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e05d4320-01d0-40c4-9a9a-457171ef7f5c?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Secondary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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