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

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Summary

CVECVE-2026-4117
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-22 09:16:23 UTC
Updated2026-04-22 09:16:23 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 5.3 MEDIUM from [email protected]

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

Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED5.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Calj CalJ Shabbat Times affected 1.5 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/calj/trunk/CalJSettingsPage.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/calj/tags/1.5/CalJSettingsPage.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/calj/tags/1.5/calj.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/calj/trunk/CalJSettingsPage.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/calj/tags/1.5/CalJSettingsPage.php [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/calj/trunk/calj.php [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/d1c7df8e-2f82-4474-88ef-8c8dd... [email protected] www.wordfence.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Nabil Irawan (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-04-21T19:08:40.000ZDisclosed
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