🔐 CVE Alert

CVE-2026-4604

MEDIUM 5.3

Klubraum Membership Request <= 1.1.0 - Missing Authorization to Unauthenticated Arbitrary Plugin Settings Update

CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th

The Klubraum Membership Request plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the `kr_mr_store_settings()` function in all versions up to, and including, 1.1.0. This makes it possible for unauthenticated attackers to update the plugin's settings, including the Klubraum API token and introduction text, effectively hijacking the plugin's integration with the Klubraum service.

CWE CWE-862
Vendor klubraum
Product klubraum membership request
Published Jul 29, 2026
Last Updated Jul 29, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

klubraum / Klubraum Membership Request
0 ≤ 1.1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/09e158d2-f9a6-41a6-a91f-1763a1a44b04?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/klubraum-membership-request/trunk/admin/class-klubraum-membership-request-widget-admin.php#L152 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/klubraum-membership-request/tags/1.1.0/admin/class-klubraum-membership-request-widget-admin.php#L152 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/klubraum-membership-request/tags/1.1.0/admin/class-klubraum-membership-request-widget-admin.php#L151 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3491619%40klubraum-membership-request%2Ftrunk%2Fadmin%2Fclass-klubraum-membership-request-widget-admin.php&old=2512635%40klubraum-membership-request%2Ftrunk%2Fadmin%2Fclass-klubraum-membership-request-widget-admin.php

Credits

Md. Moniruzzaman Prodhan (NomanProdhan)