WordPress / WordPress/WordPress-Coding-Standards

NonceVerification overzealous ?

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#737 4 comments 1 reaction 0 assignees View on GitHub

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Focus: Security Type: Bug
Dominant language
PHP
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Merged PRs (30d)
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Description

The following snippet of code triggers the WordPress.CSRF.NonceVerification sniff.

if ( ! isset( $_POST['field'] ) ) {
	// Do something (not using the post variable).
}

As this is checking whether a variable is not set, I believe that the error is thrown erroneously.

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Research direction

Start with the WordPress.CSRF.NonceVerification sniff and reproduce the reported PHP snippet. Trace why an isset() check on an unused POST field is flagged, then add or update coverage for this case. Done means the snippet no longer produces an erroneous warning while genuine nonce-verification violations remain reported.

Written by the indexing model from the issue text.

Assessment

Tech stack
php
Domain
tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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