Vulnerability-Lookup

GHSA-5MHQ-HH7F-VMWW

Vulnerability from github – Published: 2026-04-22 09:31 – Updated: 2026-04-22 09:31

Details

The CalJ plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.5. This is due to a missing capability check in the CalJSettingsPage class constructor, which processes the 'save-obtained-key' operation directly from POST data without verifying that the requesting user has the 'manage_options' capability, and without any nonce verification. The plugin bootstrap file (calj.php) instantiates CalJSettingsPage whenever is_admin() returns true, which is the case for any authenticated user making requests to wp-admin URLs (including admin-ajax.php). This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the plugin's API key setting and clear the Shabbat cache, effectively taking control of the plugin's API integration.

Severity ?

5.3 (Medium)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-4117"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-22T09:16:23Z",
    "severity": "MODERATE"
  },
  "details": "The CalJ plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.5. This is due to a missing capability check in the CalJSettingsPage class constructor, which processes the \u0027save-obtained-key\u0027 operation directly from POST data without verifying that the requesting user has the \u0027manage_options\u0027 capability, and without any nonce verification. The plugin bootstrap file (calj.php) instantiates CalJSettingsPage whenever is_admin() returns true, which is the case for any authenticated user making requests to wp-admin URLs (including admin-ajax.php). This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the plugin\u0027s API key setting and clear the Shabbat cache, effectively taking control of the plugin\u0027s API integration.",
  "id": "GHSA-5mhq-hh7f-vmww",
  "modified": "2026-04-22T09:31:32Z",
  "published": "2026-04-22T09:31:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4117"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/calj/tags/1.5/CalJSettingsPage.php#L25"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/calj/tags/1.5/CalJSettingsPage.php#L30"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/calj/tags/1.5/calj.php#L17"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/calj/trunk/CalJSettingsPage.php#L25"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/calj/trunk/CalJSettingsPage.php#L30"
    },
    {
      "type": "WEB",
      "url": "https://plugins.trac.wordpress.org/browser/calj/trunk/calj.php#L17"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d1c7df8e-2f82-4474-88ef-8c8ddaeb4656?source=cve"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-4117 (GCVE-0-2026-4117)

Vulnerability from cvelistv5 – Published: 2026-04-22 07:45 – Updated: 2026-04-22 12:10

Title

CalJ <= 1.5 - Authenticated (Subscriber+) Arbitrary Settings Modification via 'save-obtained-key' Action

Summary

Severity ?

5.3 (Medium)


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

CWE

CWE-862 - Missing Authorization

Assigner

Wordfence

References

URL

Tags

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

Impacted products

	Vendor	Product	Version
	calj	CalJ Shabbat Times	Affected: 0 , ≤ 1.5 (semver)

Credits

Nabil Irawan

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-4117",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-22T12:09:58.174649Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-22T12:10:09.794Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "CalJ Shabbat Times",
          "vendor": "calj",
          "versions": [
            {
              "lessThanOrEqual": "1.5",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Nabil Irawan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The CalJ plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 1.5. This is due to a missing capability check in the CalJSettingsPage class constructor, which processes the \u0027save-obtained-key\u0027 operation directly from POST data without verifying that the requesting user has the \u0027manage_options\u0027 capability, and without any nonce verification. The plugin bootstrap file (calj.php) instantiates CalJSettingsPage whenever is_admin() returns true, which is the case for any authenticated user making requests to wp-admin URLs (including admin-ajax.php). This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the plugin\u0027s API key setting and clear the Shabbat cache, effectively taking control of the plugin\u0027s API integration."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          }
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      "problemTypes": [
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      "references": [
        {
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        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/calj/trunk/CalJSettingsPage.php#L30"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/calj/tags/1.5/CalJSettingsPage.php#L30"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/calj/trunk/CalJSettingsPage.php#L25"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/calj/tags/1.5/CalJSettingsPage.php#L25"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/calj/trunk/calj.php#L17"
        },
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        }
      ],
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          "lang": "en",
          "time": "2026-04-21T19:08:40.000Z",
          "value": "Disclosed"
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      ],
      "title": "CalJ \u003c= 1.5 - Authenticated (Subscriber+) Arbitrary Settings Modification via \u0027save-obtained-key\u0027 Action"
    }
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    "datePublished": "2026-04-22T07:45:41.691Z",
    "dateReserved": "2026-03-13T13:19:56.963Z",
    "dateUpdated": "2026-04-22T12:10:09.794Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-5MHQ-HH7F-VMWW

CVE-2026-4117 (GCVE-0-2026-4117)

Tags

Sightings

Nomenclature