FKIE_CVE-2026-4011

Vulnerability from fkie_nvd - Published: 2026-04-15 09:16 - Updated: 2026-04-22 20:23
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 Power Charts Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'id' parameter of the [pc] shortcode in all versions up to, and including, 0.1.0. This is due to insufficient input sanitization and output escaping on the 'id' shortcode attribute. Specifically, in the pc_shortcode() function, the 'id' attribute is extracted from user-supplied shortcode attributes and directly concatenated into an HTML div element's class attribute without any escaping or sanitization at line 62. The resulting HTML is then passed through html_entity_decode() before being returned, further undermining any potential safety. 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/wpgo-power-charts-lite/tags/0.1.0/classes/power-charts-shortcodes.php#L40
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/wpgo-power-charts-lite/tags/0.1.0/classes/power-charts-shortcodes.php#L62
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/wpgo-power-charts-lite/trunk/classes/power-charts-shortcodes.php#L40
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/wpgo-power-charts-lite/trunk/classes/power-charts-shortcodes.php#L62
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/ea41d391-ba8d-43d9-8eda-69ac28c49328?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Power Charts Lite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027id\u0027 parameter of the [pc] shortcode in all versions up to, and including, 0.1.0. This is due to insufficient input sanitization and output escaping on the \u0027id\u0027 shortcode attribute. Specifically, in the pc_shortcode() function, the \u0027id\u0027 attribute is extracted from user-supplied shortcode attributes and directly concatenated into an HTML div element\u0027s class attribute without any escaping or sanitization at line 62. The resulting HTML is then passed through html_entity_decode() before being returned, further undermining any potential safety. 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."
    }
  ],
  "id": "CVE-2026-4011",
  "lastModified": "2026-04-22T20:23:16.350",
  "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": "Primary"
      }
    ]
  },
  "published": "2026-04-15T09:16:32.883",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/wpgo-power-charts-lite/tags/0.1.0/classes/power-charts-shortcodes.php#L40"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/wpgo-power-charts-lite/tags/0.1.0/classes/power-charts-shortcodes.php#L62"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/wpgo-power-charts-lite/trunk/classes/power-charts-shortcodes.php#L40"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/wpgo-power-charts-lite/trunk/classes/power-charts-shortcodes.php#L62"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ea41d391-ba8d-43d9-8eda-69ac28c49328?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Primary"
    }
  ]
}


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