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FKIE_CVE-2026-2509

Vulnerability from fkie_nvd - Published: 2026-04-08 14:16 - Updated: 2026-07-25 10:10
Severity
6.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Summary
The Page Builder: Pagelayer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Button widget's Custom Attributes field in all versions up to, and including, 2.0.8. This is due to an incomplete event handler blocklist in the 'pagelayer_xss_content' XSS filtering function, which blocks common, but not all, event handlers. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/pagelayer/trunk/main/functions.php#L1293
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/pagelayer/trunk/main/shortcode_functions.php#L689
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset/3479046/
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/915c119d-2bae-4ea6-babb-7e8e99054cd0?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Page Builder: Pagelayer \u2013 Drag and Drop website builder",
          "vendor": "softaculous",
          "versions": [
            {
              "lessThanOrEqual": "2.0.8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Page Builder: Pagelayer plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Button widget\u0027s Custom Attributes field in all versions up to, and including, 2.0.8. This is due to an incomplete event handler blocklist in the \u0027pagelayer_xss_content\u0027 XSS filtering function, which blocks common, but not all, event handlers. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
    },
    {
      "lang": "es",
      "value": "El plugin Page Builder: Pagelayer para WordPress es vulnerable a Stored Cross-Site Scripting a trav\u00e9s del campo de Atributos Personalizados del widget de Bot\u00f3n en todas las versiones hasta la versi\u00f3n, e incluyendo, 2.0.8. Esto se debe a una lista negra de gestores de eventos incompleta en la funci\u00f3n de filtrado de XSS \u0027pagelayer_xss_content\u0027, que bloquea gestores de eventos comunes, pero no todos. Esto hace posible que atacantes autenticados, con acceso de nivel de Colaborador y superior, inyecten scripts web arbitrarios en p\u00e1ginas que se ejecutar\u00e1n cada vez que un usuario acceda a una p\u00e1gina inyectada."
    }
  ],
  "id": "CVE-2026-2509",
  "lastModified": "2026-07-25T10:10:00.167",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 2.7,
        "source": "security@wordfence.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-2509",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-08T14:47:17.692642Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-08T14:16:27.693",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/pagelayer/trunk/main/functions.php#L1293"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/pagelayer/trunk/main/shortcode_functions.php#L689"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset/3479046/"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/915c119d-2bae-4ea6-babb-7e8e99054cd0?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "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.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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