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WordPress CVE-2026-1390

| EUVDEUVD-2026-14004 MEDIUM
Cross-Site Request Forgery (CSRF) (CWE-352)
2026-03-21 Wordfence GHSA-55wh-fv2f-g2fq
4.3
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Lifecycle Timeline

3
EUVD ID Assigned
Mar 21, 2026 - 04:00 euvd
EUVD-2026-14004
Analysis Generated
Mar 21, 2026 - 04:00 vuln.today
CVE Published
Mar 21, 2026 - 03:26 nvd
MEDIUM 4.3

DescriptionCVE.org

The Redirect countdown plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0. This is due to missing nonce validation on the countdown_settings_content() function. This makes it possible for unauthenticated attackers to update the plugin settings including the countdown timeout, redirect URL, and custom text, via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

AnalysisAI

The Redirect Countdown WordPress plugin for all versions up to and including 1.0 contains a Cross-Site Request Forgery vulnerability in the countdown_settings_content() function due to missing nonce validation. An unauthenticated attacker can trick a site administrator into clicking a malicious link to modify critical plugin settings including countdown timeout, redirect URL, and custom text. With a CVSS score of 4.3 and network-accessible attack vector, this vulnerability has moderate real-world impact despite low baseline severity, as it directly affects site functionality and user experience.

Technical ContextAI

This vulnerability exploits improper request validation in the WordPress plugin architecture, specifically the failure to implement WordPress nonce (number used once) verification on the countdown_settings_content() function. The affected product is the Redirect Countdown plugin by Haghs (CPE: cpe:2.3:a:haghs:redirect_countdown:*:*:*:*:*:*:*:*), which is a WordPress plugin that manages countdown timers and redirects users after a specified duration. The root cause falls under CWE-352 (Cross-Site Request Forgery), a classic web vulnerability where state-changing operations lack cryptographic tokens. WordPress plugins typically handle settings via admin POST requests, and without proper nonce validation (a randomly-generated token unique to each session and action), any website can forge requests to modify plugin configuration when an administrator visits an attacker-controlled page. The vulnerability exists in the plugin code visible at the WordPress plugin repository trac browser endpoints, confirming the issue persists in the main trunk and 1.0 tag releases.

RemediationAI

Update the Redirect Countdown plugin to a patched version that includes nonce validation on the countdown_settings_content() function; check the WordPress plugin repository and the vendor's advisory for the recommended version number. If an immediate patch is unavailable, disable the plugin until a fix is released, or restrict access to the WordPress admin interface to known IP addresses using .htaccess or firewall rules to reduce the attack surface. Additionally, educate site administrators about CSRF attacks and suspicious links, and monitor plugin settings for unauthorized changes via audit logs. Verify the patch installation by reviewing the updated plugin code to confirm nonce verification is present on all state-changing admin actions.

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CVE-2026-1390 vulnerability details – vuln.today

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