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Vulnerability DatabaseCVE-2025-9890

CVE-2025-9890: 
WordPress vulnerability analysis and mitigation

Overview

The Theme Editor plugin for WordPress contains a Cross-Site Request Forgery (CSRF) vulnerability affecting all versions up to and including 3.0. The vulnerability was discovered on October 17, 2025, and was assigned CVE-2025-9890. This security issue impacts the themeeditortheme page functionality within the plugin (NVD).

Technical details

The vulnerability stems from missing or incorrect nonce validation on the 'themeeditortheme' page. It has been assigned a CVSS v3.1 Base Score of 8.8 (HIGH) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The issue is classified as CWE-352 (Cross-Site Request Forgery) (Wordfence).

Impact

The vulnerability allows unauthenticated attackers to achieve remote code execution if they can trick a site administrator into performing specific actions, such as clicking on a malicious link. This could potentially lead to complete compromise of affected WordPress sites (NVD).

Mitigation and workarounds

The vulnerability has been addressed in version 3.1 of the Theme Editor plugin, released on October 15, 2025. Users are strongly advised to update to this latest version to mitigate the security risk (WordPress Plugin).

Additional resources

Source: This report was generated using AI

Related WordPress vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2025-9890HIGH8.8
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NoYesOct 18, 2025
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NoNoOct 18, 2025

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