Vulnerability-Lookup

GHSA-VRVP-J8FH-MQGH

Vulnerability from github – Published: 2026-09-18 12:31 – Updated: 2026-09-18 12:31

Details

The Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via values[Name] Parameter in all versions up to, and including, 1.24.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The wp_kses sanitization applied on output is insufficient in this context because HTML entities within allowed attribute values survive normalization intact and are later evaluated by the jQuery(link.attr('href')) sink in wp-admin/js/common.js when a contextual help tab anchor is clicked.

Severity

7.2 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-87915"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-18T10:17:07Z",
    "severity": "HIGH"
  },
  "details": "The Popup Maker \u2013 Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via values[Name] Parameter in all versions up to, and including, 1.24.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The wp_kses sanitization applied on output is insufficient in this context because HTML entities within allowed attribute values survive normalization intact and are later evaluated by the jQuery(link.attr(\u0027href\u0027)) sink in wp-admin/js/common.js when a contextual help tab anchor is clicked.",
  "id": "GHSA-vrvp-j8fh-mqgh",
  "modified": "2026-09-18T12:31:19Z",
  "published": "2026-09-18T12:31:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-87915"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Abstract/Database.php#L359"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Admin/Subscribers/Table.php#L281"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/ListTable.php#L1408"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Newsletters.php#L273"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Newsletters.php#L59"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Newsletters.php#L74"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset/3690634/popup-maker/trunk/classes/Admin/Subscribers/Table.php"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026new=3690634%40popup-maker%2Ftags%2F1.25.0\u0026old=3648112%40popup-maker%2Ftags%2F1.24.0"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ea8b1eee-2e3f-4d61-b815-4ea0aaa188b5?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-87915 (GCVE-0-2026-87915)

Vulnerability from cvelistv5 – Published: 2026-09-18 09:28 – Updated: 2026-09-18 14:41

Title

Popup Maker <= 1.24.0 - Unauthenticated Stored Cross-Site Scripting via values[Name] Parameter

Summary

Severity

7.2 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-18 14:40 UTC

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

Wordfence mitre root

References

9 references

URL	Tags
https://www.wordfence.com/threat-intel/vulnerabil…
https://plugins.trac.wordpress.org/browser/popup-…
https://plugins.trac.wordpress.org/browser/popup-…
https://plugins.trac.wordpress.org/browser/popup-…
https://plugins.trac.wordpress.org/browser/popup-…
https://plugins.trac.wordpress.org/browser/popup-…
https://plugins.trac.wordpress.org/browser/popup-…
https://plugins.trac.wordpress.org/changeset?repo…
https://plugins.trac.wordpress.org/changeset/3690…

Impacted products

1 product

Vendor	Product	Version
danieliser	Popup Maker – Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder	Affected: 0 , ≤ 1.24.0 (semver)

Credits

Naoya Takahashi (nakko)

Show details on NVD website

JSON

To clipboard

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        "metrics": [
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                "id": "CVE-2026-87915",
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                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-18T14:40:14.518486Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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          "shortName": "CISA-ADP"
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          "product": "Popup Maker \u2013 Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder",
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          "versions": [
            {
              "lessThanOrEqual": "1.24.0",
              "status": "affected",
              "version": "0",
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          "lang": "en",
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          "value": "The Popup Maker \u2013 Boost Sales, Conversions, Optins, Subscribers with the Ultimate WP Popup Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via values[Name] Parameter in all versions up to, and including, 1.24.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The wp_kses sanitization applied on output is insufficient in this context because HTML entities within allowed attribute values survive normalization intact and are later evaluated by the jQuery(link.attr(\u0027href\u0027)) sink in wp-admin/js/common.js when a contextual help tab anchor is clicked."
        }
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          "url": "https://plugins.trac.wordpress.org/browser/popup-maker/tags/1.24.0/classes/Admin/Subscribers/Table.php#L281"
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        },
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      "timeline": [
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          "time": "2026-09-09T16:06:09.000Z",
          "value": "Vendor Notified"
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          "time": "2026-09-17T21:21:53.000Z",
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      "title": "Popup Maker \u003c= 1.24.0 - Unauthenticated Stored Cross-Site Scripting via values[Name] Parameter"
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Sightings

Author	Source	Type	Date	Other

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.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.