The changelog for the latest version of Resize Image After Upload is “Improve security to the settings form by using nonce”. Looking at the changes made in that version we found that to be an accurate description. Fairly often that type of issue leads to a cross-site scripting (XSS) issue since there is not some combination of sanitization and validation on settings to avoid malicious JavaScript code to being added, but in this case that was actually being done. That leaves that at a cross-site request forgery (CSRF)/settings change vulnerability.

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