Vulnerability-Lookup

GHSA-953C-P36C-7PC3

Vulnerability from github – Published: 2026-04-22 21:31 – Updated: 2026-04-22 21:31

Details

The Coachific Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'userhash' shortcode attribute in all versions up to and including 1.0. This is due to insufficient input sanitization and output escaping. The plugin uses sanitize_text_field() on the 'userhash' parameter, which strips HTML tags but does not escape characters significant in a JavaScript string context (such as double quotes, semicolons, and parentheses). The sanitized value is then directly interpolated into a JavaScript string within a tag on line 29 without any JavaScript-specific escaping (e.g., wp_json_encode() or esc_js()). 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.

Severity ?

6.4 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-4005"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-15T09:16:32Z",
    "severity": "MODERATE"
  },
  "details": "The Coachific Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027userhash\u0027 shortcode attribute in all versions up to and including 1.0. This is due to insufficient input sanitization and output escaping. The plugin uses sanitize_text_field() on the \u0027userhash\u0027 parameter, which strips HTML tags but does not escape characters significant in a JavaScript string context (such as double quotes, semicolons, and parentheses). The sanitized value is then directly interpolated into a JavaScript string within a \u003cscript\u003e tag on line 29 without any JavaScript-specific escaping (e.g., wp_json_encode() or esc_js()). 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": "GHSA-953c-p36c-7pc3",
  "modified": "2026-04-22T21:31:44Z",
  "published": "2026-04-22T21:31:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4005"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/coachific-shortcode/tags/1.0/coachific.php#L13"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/coachific-shortcode/tags/1.0/coachific.php#L29"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/coachific-shortcode/trunk/coachific.php#L13"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/coachific-shortcode/trunk/coachific.php#L29"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/3d91158c-0b34-460e-9fdb-b99165ebca78?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-4005 (GCVE-0-2026-4005)

Vulnerability from cvelistv5 – Published: 2026-04-15 08:28 – Updated: 2026-04-16 13:39

Title

Coachific Shortcode <= 1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'userhash' Shortcode Attribute

Summary

The Coachific Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'userhash' shortcode attribute in all versions up to and including 1.0. This is due to insufficient input sanitization and output escaping. The plugin uses sanitize_text_field() on the 'userhash' parameter, which strips HTML tags but does not escape characters significant in a JavaScript string context (such as double quotes, semicolons, and parentheses). The sanitized value is then directly interpolated into a JavaScript string within a <script> tag on line 29 without any JavaScript-specific escaping (e.g., wp_json_encode() or esc_js()). 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.

Severity ?

6.4 (Medium)


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

CWE

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

Assigner

Wordfence

References

URL

Tags

	https://www.wordfence.com/threat-intel/vulnerabil…
	https://plugins.trac.wordpress.org/browser/coachi…
	https://plugins.trac.wordpress.org/browser/coachi…
	https://plugins.trac.wordpress.org/browser/coachi…
	https://plugins.trac.wordpress.org/browser/coachi…

Impacted products

	Vendor	Product	Version
	coachific	Coachific Shortcode	Affected: 0 , ≤ 1.0 (semver)

Credits

zakaria

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-4005",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-16T13:38:59.940576Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-16T13:39:08.598Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Coachific Shortcode",
          "vendor": "coachific",
          "versions": [
            {
              "lessThanOrEqual": "1.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "zakaria"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Coachific Shortcode plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the \u0027userhash\u0027 shortcode attribute in all versions up to and including 1.0. This is due to insufficient input sanitization and output escaping. The plugin uses sanitize_text_field() on the \u0027userhash\u0027 parameter, which strips HTML tags but does not escape characters significant in a JavaScript string context (such as double quotes, semicolons, and parentheses). The sanitized value is then directly interpolated into a JavaScript string within a \u003cscript\u003e tag on line 29 without any JavaScript-specific escaping (e.g., wp_json_encode() or esc_js()). 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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-79",
              "description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-15T08:28:14.507Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/3d91158c-0b34-460e-9fdb-b99165ebca78?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/coachific-shortcode/trunk/coachific.php#L29"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/coachific-shortcode/tags/1.0/coachific.php#L29"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/coachific-shortcode/trunk/coachific.php#L13"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/coachific-shortcode/tags/1.0/coachific.php#L13"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-04-14T19:47:11.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "Coachific Shortcode \u003c= 1.0 - Authenticated (Contributor+) Stored Cross-Site Scripting via \u0027userhash\u0027 Shortcode Attribute"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-4005",
    "datePublished": "2026-04-15T08:28:14.507Z",
    "dateReserved": "2026-03-11T18:56:10.776Z",
    "dateUpdated": "2026-04-16T13:39:08.598Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-953C-P36C-7PC3

CVE-2026-4005 (GCVE-0-2026-4005)

Tags

Sightings

Nomenclature