What’s Vulnerable › Vulnerabilities

CVE-2026-116610: Clean Login <= 1.20.1 - Missing Authorization to Authenticated (Contributor+) Arbitrary Clean-Login Option Update via 'save_post' Hook

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-28 · updated 2026-10-28
• Weakness: CWE-862

Description

The Clean Login plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 1.20.1 due to a missing capability check on the CleanLogin_Shortcode::get_pages_with_shortcodes() function hooked to the save_post action. This makes it possible for authenticated attackers, with Contributor-level access and above, to overwrite the plugin's cl_login_url/cl_login_id/cl_register_url/cl_register_id/cl_restore_url/cl_restore_id/cl_edit_url/cl_edit_id/cl_change_password_url/cl_change_password_id options with the ID and permalink of a post they themselves authored — simply by embedding the plugin's shortcodes in their own post content.

Affected products

• Clean Login: through 1.20.1

References

• https://plugins.trac.wordpress.org/browser/clean-login/tags/1.20.1/include/shortcodes.php#L14
• https://plugins.trac.wordpress.org/browser/clean-login/tags/1.20.1/include/shortcodes.php#L262
• https://plugins.trac.wordpress.org/changeset/3768058/clean-login
• https://plugins.trac.wordpress.org/changeset/3768058/clean-login/trunk/include/shortcodes.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/83a8c282-8552-420d-842f-acd235ad61b8?source=cve

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